Answered: A light bulb is connected in the…

A light bulb is connected in the circuit shown in Fig. . Ifwe close the switch S, does the bulb’s brightness increase, decrease, orremain the same? Explain why.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter14: Inductance

Section: Chapter Questions

Problem 84CP: The switch in the circuit shown below is closed at t = 0s. Find currents through (a) R1(b) R2, and...

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Question

A light bulb is connected in the circuit shown in Fig. . If
we close the switch S, does the bulb’s brightness increase, decrease, or
remain the same? Explain why.

Expert Solution

Step 1: Given

Switch S is in series with the third resistance.

As we close the Switch S then the third resistance is connected to the circuit.

=> Equivalent resistance of circuit decreases as Switch S is closed.

Step by step

Solved in 2 steps

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