Consider a very simple electrical circuit shown in the drawing. It consists of a
ID: 1366320 • Letter: C
Question
Consider a very simple electrical circuit shown in the drawing. It consists of a power supply, a battery with terminal voltage V, a power consumer represented by a light bulb of resistance R and two switches labeled as S1 and 9S_2).
Describe which of the following sentences correctly describes the operation of the circuit
A) When the switch S2 is closed and the switch S1 is closed the light bulb is lit.
B) When the switch S2 is closed and the switch S1 is open the light bulb is lit
C) When the switch S2 is closed and the switch S1 is closed the light bulb is off
D) When the switch S2 is open and the switch S1 is closed the light bulb is off
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Explanation / Answer
when S2 is closed ,that is said to be short circuited,then there is no flow of current through the bulb
when S1 is open then there is no currrent through te bulb
then
the correct statements are only C) When the switch S2 is closed and the switch S1 is closed the light bulb is off