Start Free Mock LoginAlready registered? Login here

Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical instrumentEasy2 minPYQ_2023

PhysicsEasysingle choice

In an experiment on a circuit as shown in the figure, the voltmeter shows $8 V$ reading. The resistance of the voltmeter is,

Options:

Answer:

Solution:

Hint: Voltage across $20Ω = 2 V$ Main current $= \frac{2}{20} = 0.1 A$ Current through $160Ω = \frac{8}{160} = \frac{1}{20} = 0.05 A$ Also, $8 V = 0.05 \times R$ $R = \frac{8}{0.05} = 160Ω$

Stream:WBJEESubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument

⏱ 2mℹ️ Source: PYQ_2023

Doubts & Discussion

Loading discussions...