Start Free Mock LoginAlready registered? Login here

Physics - Current Electricity Question with Solution | TestHub

PhysicsCurrent ElectricityBatteryMedium2 minQB

PhysicsMediumsingle choice

A generator has armature resistance of $0.1Ω$ and develops an induced emf of $120 V$ when driven at its rated speed. Its terminal voltage when a current of $50 A$ is being drawn is

Options:

Answer:

Solution:

Armature resistance $R = 0.1Ω$
Induced emf, $e = 120 V$
Current drown, $I = 50 A$
We know that,
$e = V + I R$
or, $V = e - I R = 120 - 50 \times 0.1 = 115 V$

Stream:JEESubject:PhysicsTopic:Current ElectricitySubtopic:Battery

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...