Engineering College

Two identical bulbs in parallel in a radio create a total resistance of 15 ohms in the circuit. What's the resistance of each of the bulbs A. 10 ohms B. 7.5 ohms C. 45 ohms D. 30 ohms

Answers

Answer 1

Answer

letter B is the answer because 7.5+7.5=15

Answer 2

The resistance of each of the bulbs will be 30 ohms. The correct option is D.

What is resistance?

To resist the passage of current, use a resistor. When a resistor is included in a circuit, the amount of current that flows through it drops.

Using ohms as the unit, resistance acts as a gauge to quantify how easily current will flow through a circuit.

When resistance falls, current rises, and when resistance rises, current falls. In order to make sure that current flows in circuits at the proper rate, resistors are crucial.

Here, it is given that:

Total resistance is 15 ohms.

We know that, two identical resistors in parallel have an equivalent resistance half the value of either resistor.

So, the total resistance of 15 ohms have the resistance of each of the bulbs as 30 ohms.

Thus, the correct option is D.

For more details regarding resistance, visit:

https://brainly.com/question/29427458

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Related Questions

A cylindrical vessel is pressurized to 1.7 MPa. The structure on which the vessel rests becomes damaged, resulting in uneven support that causes a twisting moment T0 of 8 106 N-m on the vessel. The vessel has an outer diameter of 2.5 m and a wall thickness of 50 mm. The steel wall has a uniaxial yield strength of 600 MPa. Determine the factor of safety with respect to yielding (a) assuming a maximum shear stress yield criterion and (b) assuming a von Mises yield criterion.

Answers

Answer:

a) 15.075  , b ) 12.9

Explanation:

pressure on cylindrical vessel = 1.7 MPa

Twisting moment due to pressure = To of  8( 10^6 ) N-m

outer diameter of vessel = 2.5 m

wall thickness of vessel = 50 mm

Steel wall uniaxial yield strength = 600 MPa

Calculate the factor of safety

a) assuming a max shear stress yield criterion

safety factor = 15.075

b) assuming a von Mises yield criterion

safety factor = 12.9

attached below is the detailed solution of the problem

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