Start Free Mock LoginAlready registered? Login here

Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityElectrical instrumentEasy2 minPYQ_2020

PhysicsEasysingle choice

When a Daniel cell is connected in the secondary circuit of a potentiometer, the balancing length is found to be $540 cm$ . If the balancing length becomes $500 cm$ when the cell is short-circuited with $1 Ω,$ the internal resistance of the cell is

Options:

Answer:

Solution:

Internal resistance,

$r = R (\frac{l_{1} - l_{2}}{l_{2}}) = 1 (\frac{540 - 500}{500}) = \frac{40}{500} = 0.08 Ω$

Stream:NTA_ABHYAS_NEETSubject:PhysicsTopic:Current ElectricitySubtopic:Electrical instrument

⏱ 2mℹ️ Source: PYQ_2020

Doubts & Discussion

Loading discussions...