Start Free Mock LoginAlready registered? Login here

Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical instrumentMedium2 minQB

PhysicsMediumsingle choice

To verify Ohm’s law, a student connects the voltmeter across the battery as shown in the figure. The measured voltage is plotted as a function of the current, and the following graph is obtained:

If $V_{o}$ is almost zero, identify the correct statement:

Options:

Answer:

Solution:

$V = E - I r$

when $V = V_{0} = 0 \Rightarrow 0 = E - I r$

$∴ E = I r$

when $I = 0, V = E = 1.5 V$

$∴ r = 1.5Ω.$

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...