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Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityBatteryMedium2 minPYQ_2022

PhysicsMediumsingle choice

A cell of emf $4 V$ and internal resistance $0.5Ω$ is connected to a $7.5Ω$ external resistance. The terminal potential difference of the cell is:NEET 2022 (Phase 2)

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Answer:

Solution:

As, $i = \frac{E}{R + r}$ Hence, $i = \frac{4}{7.5 + 0.5} = \frac{4}{8} = \frac{1}{2}$ And, $V = E - i r$ (where, the symbols have their usual meanings) $V V = 4 - 0.5 \times 0.5 = 3.75 volt$

Stream:NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Battery

⏱ 2mℹ️ Source: PYQ_2022

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