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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityCircuit AnalysisMedium2 minPYQ_2012

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In the circuit shown the cells $A$ and $B$ have negligible resistances. For $V_{A} = 12 V$ , $R_{1} = 500Ω$ and $R = 100Ω$ the galvanometer (G) shows no deflection. The value of $V_{B}$ is
NEET 2012 (Screening)

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Answer:

Solution:

Applying Kirchhoff's law $500 I + 100 I = 12$ So, $I = \frac{12 \times 1 0 ^{- 2}}{6} = 2 \times 1 0^{- 2}$ Hence, $V_{B} = 100 (2 \times 1 0^{- 2}) = 2 V$

Stream:NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Circuit Analysis

⏱ 2mℹ️ Source: PYQ_2012

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