Home
Class 12
PHYSICS
In an ac circuit an alternating voltage ...

In an ac circuit an alternating voltage `e = 200 sqrt(2) sin 100t` volts is connected to a capacitor of capacity 1 `muF.` The rms.value of the current in the circuit is

A

20 mA

B

10 mA

C

100 mA

D

200 mA

Text Solution

Verified by Experts

The correct Answer is:
A
We have
`e = 200 sqrt2 sin 100 t , V _(0) = 200 sqrt2 V`
`C = 1 mu F`
`w = 100 rad //s`
`X _(C) = (1)/(w C) = (1)/(100 xx 10 ^(-6)) = 10 ^(4) Omega`
`I _(rms) = (V _(rms))/( X _(C)) = (200 sqrt2)/( sqrt2. 10 ^(4))`
`I _(rms) = 20 m A`
Promotional Banner

Similar Questions

Explore conceptually related problems

In an ac circuit , an alternating voltage e = 200 sqrt2 sin 100 t volts is connected to a capacitor of capacitance 1 mu F . The rms value of the current in the circuit is :

In an AC circuit , an alternating voltage e = 200√2 sin 100t V is connected to a capacitor of capacity 1mu F . The rms value of the current in the circuit is

A 44 mH inductor is connected to 220 V, 50 Hz ac supply. The rms value of the current in the circuit is

An alternating voltage E=200sqrt(2)sin(100t) is connected to a 1 microfarad capacitor through an AC ammeter. The reading of the ammeter shall be

An alternating voltage E=200sqrt(2)sin(100t) is connected to a 1 microfarad capacitor through an AC ammeter. The reading of the ammeter shall be

A 30 mu F capacitor is connected to a 150 V, 60 Hz ac supply. The rms value of current in the circuit is

An alternating voltage given by V=300sqrt2sin (50t) (in volts) is connected across a 1muF capacitor through an AC ammeter. The reading of the ammeter will be

A 60muF capacitor is connected to a 110V, 60 Hz AC supply determine the rms value of the curent in the circuit.

An alternating voltage given as, V=100sqrt(2)sin100t V is applied to a capacitor of 1muF . The current reading of the ammeter will be equal to ................ mA.

A 40 micro F capacitor is connected to a 200V, 50 Hz ac supply. Rms value of current in circuit is nearly