You are an electrician working in an industrial plant. A circuit contains eight incandescent lamps connected in series across 480 volts. One lamp has burned out, and you must determine which one is defective. You have available a voltmeter, ammeter, and ohmmeter. Which meter would you use to determine which lamp is defective in the shortest possible time? Explain how you would use this meter and why.

Answers

Answer 1

The burnt out bulb is located between two points in the circuit that have a

discontinuity.

The meter that can determine the defective lamp in the shortest possible time is the ohmmeterThe ohmmeter can be used iteratively to determine the defective bulb because the ohmmeter checks for continuity between two points and the process is repeated to locate the burned out bulb.

Reasons:

The process and steps to determine the lamp that has burned out;

The given arrangement of the bubs = Series arrangement

Therefore;

A burn out of a bulb, causes a discontinuity by opening the circuit and to current flow.

The meter to use is that determine the defective lamp is one that checks for discontinuity, or an open circuit, which is the presence of infinite resistance, which requires a resistance meter;

Therefore, the ohmmeter (resistance meter) is the best meter to use

 

To determine the defective bulb;

Step 1: Switching off the power source or switch of the bulbsStep 2: Place the leads of the ohmmeter from one end of the circuit to after the middle bulb in the series, which is  between the 4th and the 5th bulb Step 3: Check for continuity on the ohmmeterStep 4: If there is continuity, repeat the test on the other half of the circuit.Step 5: If there is discontinuity, repeat the test across each pair of adjacent bulbs within the first half, to find the burnt out bulb.Replace the bulb across which there is a discontinuity and switch on the power source to test the the circuit.

Learn more here;

https://brainly.com/question/14483320


Related Questions

1/4X - 8 + 12 = -3/4X + 5 Solve for X

Answers

Answer:

x = 1

Step-by-step explanation:

I'm going to convert this to decimal to make it easier to type

Since x = 1, there is no need to include it in the equation

1/4 - 8 = -7.75 + 12 = 4.25

-0.75 + 5 = 4.25

Answer:

By simplifying both sides of the equation, then isolating the variable.

X=1

Step-by-step explanation:

1/4*1-8+12=-3/4*1+5

Write an equation for a line parallel to y = − 2 x + 4 and passing through the point ( 2 , 1 )

Answers

Answer:

x=2y

Step-by-step explanation:

y=-2x+4 is perpendicular to the line which passes through (2,1). We know that we can use the formula y=mx+c to find the gradient of the line with the equation y=-2x+4, which will give you -2. The product of the gradient of two perpendicular lines is always -1. So the gradient of the line which passes through (2,1 ) is -½.

Now,to find the equation of the line,we use the formula y-y1=m(xx1)which will give you the answer 2y=x when solved.

Casey burrows 3200 for a computer system at a rate of 4.25% per year. How much simple interest will he owe if he takes 4 months to repay the loan? Round to the nearest cent.

Answers

Answer:

$45.33

Step-by-step explanation:

First we find 4.25% of $3200 to find the interest in 1 year.

For simple interest, use this formula:

I = Prt

where

I = amount of interest

P = principal amount (the amount deposited or borrowed)

r = annual interest rate

t = number of years

We have

I = ?

P = $3200

r = 4.45% = 0.425

t = 1 year

I = ($3200)(0.0425)(1)

I = $136

The interest in 1 year is $136.

Now we convert 4 months to years

1 year = 12 months

4/12 = 1/3

4 months are only 1/3 of a year, so he pays only 1/3 of the interest of an entire year.

1/3 * $136 = $136/3 = $45.3333...

Answer: $45.33

Hey , I think it’s 75 but I kinda think it should be highter…?

Answers

Answer:

120

Step-by-step explanation:

Rectangle 1 volume:

3x5x2=30

Rectangle 2 volume:

3x7x2=42

Rectangle 3 volume:

3x8x2=48

Total Volume:

48+42+30=120

Tina is working on a science project. She needs to make green paint in
order to complete her project. For every two gallons of blue paint, she
needs to add six gallons of yellow. If Tina used a total of 1,312 gallons
of paint, how many gallons were yellow?
94

Answers

Answer:

I think 164

Step-by-step explanation:

1312/8

PLEASE HELP FAST. Maggie pays for a 6-month subscription to a video streaming channel. Because she purchased 6 months at once, she receives a $10 discount. Her final price after the discount is $43.94. What was the original price per month (H)?

Answers

Answer:

53.94$

Step-by-step explanation:

Answer:

53.94$

Step-by-step explanation:

What is the slope of -7 ,-4 and 7,-4

Answers

Answer:

ifk

Step-by-step explanation:

what is a nice party in the car going right be in a call to get place to go out and to some of these things for you to take care and party and to parties place party on the phone case pink or something like else is one nice good to of rid if not you a bit of longer health way your family or

Can someone tell me the answers

Answers

Answer:

exploration is the answer I got

I got Exploration. I think it’s right

Choose the best description for the real number 34 over 3 .

Answers

Answer: the first one is irrational because it is a repeating fraction.

the third is square root of 7 is less than 14/5

the fourth is negative 5 over 6, negative 5, negative 31 over 6, negative square root 26

Step-by-step explanation: Hope this helps !

HELPP PLSS URGENT PLSS

Answers

Answer:

pc wuidorn8

Step-by-step explanation:

Please help and show work?

Shuana bought a skirt on sale for $28.00. That is, 80% of the regular price. What is the regular price?

Answers

Answer:

35

Step-by-step explanation:

28 divided by 0.80 = 35

The somatic cells, or non-reproductive cells, in the human body contain 46 chromosomes that occur as 23 pairs of chromosomes.


Which answer below best explains where these chromosomes come from?

Answers

Step-by-step explanation:

23 of the chromosomes come from one parent , 23 from other parent.

simplify the radical and use the imaginary unit i.

Answers

Answer:

49

=

7

i

Explanation:

A square root of a number  

n

is a number  

x

such that  

x

2

=

n

Note that if  

x

is a Real number then  

x

2

0

.

So any square root of  

49

is not a Real number.

In order to be able to take square roots of negative numbers, we need Complex numbers.

That's where the mysterious number  

i

comes into play. This is called the imaginary unit and has the property:

i

2

=

1

So  

i

is a square root of  

1

. Note that  

i

is also a square root of  

1

, since:

(

i

)

2

=

(

1

i

)

2

=

(

1

)

2

i

2

=

1

(

1

)

=

1

Then we find:

(

7

i

)

2

=

7

2

i

2

=

49

(

1

)

=

49

So  

7

i

is a square root of  

49

. Note that  

7

i

is also a square root of  

49

.

What do we mean by the square root of  

49

For positive values of  

n

, the square root is usually taken to mean the principal square root  

n

, which is the positive one.

For negative values of  

n

, the square roots are both multiples of  

i

, so neither positive nor negative, but we can define:

n

=

i

n

With this definition, the principal square root of  

49

is:

49

=

i

49

=

7

i

Footnote

The question remains: Where does  

i

come from?

It is possible to define Complex numbers formally, as pairs of Real numbers with rules for arithmetic like this:

(

a

,

b

)

+

(

c

,

d

)

=

(

a

+

c

,

b

+

d

)

(

a

,

b

)

(

c

,

d

)

=

(

a

c

b

d

,

a

b

+

c

d

)

These rules for addition and multiplication work as expected with commutativity, distributivity, etc.

Then Real numbers are just Complex numbers of the form  

(

a

,

0

)

and we find:

(

0

,

1

)

(

0

,

1

)

=

(

1

,

0

)

That is  

(

0

,

1

)

is a square root of  

(

1

,

0

)

Then we can define  

i

=

(

0

,

1

)

and:

(

a

,

b

)

=

a

(

1

,

0

)

+

b

(

0

,

1

)

=

a

+

b

i

Choose an even number between 10 and 19 . Draw a picture and then write a sentence to explain why it its an even number

Answers

Answer:

12, 14, 16, and 18 are all even numbers between 10 and 19

Step-by-step explanation:

They are all even numbers because they end in 2, 4, 6, or 8. 0 is considered neither even nor odd.

Answer:

12 is an even number because it is divisible by 2

find the factors and the greatest common factor for each set of numbers. 250, 45, 30

Answers

The gcf of 250, 45, and 30 is 5

HELLPPPPPPPPPPP


The graphs of functions f(x) and g(x) = f(x)+k


The value of k is ____?

Answers

Answer:

2

Step-by-step explanation:

f(x) starts at the orgin, (0, 0), and g(x) starts at (0, 2)

With this information we can decide that k is 2 as it moved the line up 2

(hope this helps, I see that is Canvas, good luck!)

Help me out please!!

Answers

Step-by-step explanation:

1. [tex](fg)' = f'g + fg' [/tex] (chain rule)

2 [tex]f(x) = x^5\sin{x}[/tex]

[tex]\Rightarrow f'(x) = 5x^4\sin{x} + x^5\cos{x}[/tex]

If you flip three fair coins, what is the probability that you’ll get two tails and one head in any order?

Answers

Step-by-step explanation:

1/ 3 is the probability of getting one head

15x10 to the power of 4​

Answers

Answer:

Step-by-step explanation:

[tex]15*10^{4}=15*10000 = 150,000[/tex]

What are the coordinates of point J'?

Answers

Answer:

Step-by-step explanation:

The coordinates of point J are (10,-2) and L os a point on the y axis.

Choose the correct name for the set of numbers, {1,2,3,...) irrational numbers integers whole numbers real numbers natural numbers rational numbers​

Answers

Answer:

These are rational numbers.

i don't know how to do math lol​

Answers

Answer:

Ima guess 60

Step-by-step explanation:

9514 1404 393

Answer:

  60°

Step-by-step explanation:

The exterior angle is equal to the sum of the remote interior angles:

  100° = 40° +∠B

  60° = ∠B . . . . . . . . . . . . . subtract 40° from both sides

Help please. Thank you if you do

Answers

im so sorry i dk.............

-5 + 9x4-2+(8-3)x6 divide 2 +3

Answers

It's a fraction. At the numerator we have : -5+9×4-2+(8-3)×6 = -5 + 36 -2 + 5×6 = -5 +36-2 +30= 31-2+30 = 29+30= 59

59/2 = 29.5 +3 = 32.5

A snake bar sold 12 1/2 gallons of milk at 35 cents a pint. How much did the snack bar receive for the milk

Answers

9514 1404 393

Answer:

  $35.00

Step-by-step explanation:

The number of pints sold is ...

  (12.5 gal)×(8 pt/gal) = 100 pt

Then the total amount received for the milk is ...

  (100 pt)($0.35/pt) = $35.00

Is the function y=|x-5|a one to one function? Justify your answer

Answers

Answer:

no

Step-by-step explanation:

if a=0 it's y=0, it's not one to one

if ais not 0, it's a even function and it's not 1 to 1, for example a=1, x=8 and x=2 have same f(x)

Work out the value of x. And give a reason for your answer

Answers

Answer:

x = 120°

The triangle is an equilateral triangle and all the angles in an equilateral triangle equal 60°.

Straight lines have 180° angles.

180 -  60 = 120

X=120 just took the test

2 3/4 gallons in 3 2/3 minutes

Answers

Step-by-step explanation:

2 3/4 gallons in 3 2/3 minutes

equal to :

11/4 ÷ 11/3 =

11/4 × 3/11 =

3/4 gallons per minutes

or

0.75 gpm

2 3/4=11/4gallons3 2/3=11/3 min

Speed

11/4÷11/311/4×3/113/4gallons per minute

Please help worth 50 points!!!

Answers

When you divide by a fraction you are really multiplying the reciprocal (flipped).

1/2 / 1/8 is really 1/2 x 8 = 4

pls change this to decimal number 1011111 base 2​

Answers

Answer:

95

Step-by-step explanation:

1. First, the binary to decimal formula is:  

decimal = [tex]d_0*2^0 + d_1 *2^1 + d+2*2^2+..[/tex]  

2. Now, let's apply it:

[tex](1011111 )_2= (1 *2^6) + (0 *2^5) + (1*2^4) + (1*2^3) + (1 *2^2) + (1 *2^1) + (1*2^0)[/tex] [tex]1(64) + 0(32) + 1(16)+1(8)+1(4)+1(2)+1(1)[/tex] [tex]64 + 0 + 16 + 8 + 4 + 2 + 1[/tex] [tex]80 + 8 + 4 + 2 + 1[/tex] [tex]88 + 4 + 2 + 1[/tex] [tex]92 + 2 + 1[/tex] [tex]94 + 1[/tex] [tex]95[/tex]

Therefore, the answer is 95.

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