An e.m.f. E=4cos(1000t)volt is applied t...

An e.m.f. `E=4cos(1000t)`volt is applied to an `LR` circuit of inductance `3mH` and resistance `4ohm`. The amplitude of current in the circuit is

`4sqrt7A`

`1.0A`

`(4)/(7)A`

`0.8A`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

NTA JEE MOCK TEST 66
NTA MOCK TESTS|Exercise PHYSICS|25 Videos
NTA JEE MOCK TEST 69
NTA MOCK TESTS|Exercise PHYSICS|24 Videos

Similar Questions

Explore conceptually related problems

An A.C. voltage V=5cos(1000t)V is applied to an L-R series circuit of inductance 3 mH and resistance 4Omega . The value of the maximum current in the circuit is ……………. A.

An L-R circuit consists of an inductance of 8mH and a resistance of 4 Omega . The time constant of the circuit is :-

An e.m.f. of 15 volt is applied in a circuit containing 5 henry inductance and 10 ohm resistance. The ratio of the current at time t=oo and at t=1 second is

An alternating e.m.f. E=10sqrt(2) sin omega volt is applied to a circuit containing a pure inductance L and a resistance and voltage acros the resistance is 6 v between the current and potential difference in this circuit is

An e.m.f. E = 200 sin 377 t volt is applied across an inductance L having a resistance of 1.0 ohm. The maximum current is found to be 10 A. Find the value of L.

An alternating e.m.f. given by e=200 sin 50 t is applied to a circuit containing only a resistance of 50 Omega . What is the value of r.m.s. current in the circuit?

In a LR circuit of 3 mH dinductance and 4 Omega resistance, emf E=4cos 1000t volt is applied. The amplitude of current is

A circuit consists of 3 ohm resistance and 4 ohm reactance The power factor of the circuit is

" A circuit consists of "3" ohm resistance and "4" ohm reactance The power factor of the circuit is "

An e.m.f. E =E_(0) cos omega t is applied to a circuit containing L and R in series. If X_(L)=R , then the power dissipated in the circuit is given by

NTA MOCK TESTS-NTA JEE MOCK TEST 67-PHYSICS

After perfectly inelastic collision between two identical balls moving...
Text Solution
|
A light rod length L, is hanging from the vertical smooth wall of a ve...
Text Solution
|
An e.m.f. E=4cos(1000t)volt is applied to an LR circuit of inductance ...
Text Solution
|
Four identical capacitors are connected with a battery of voltage V an...
Text Solution
|
The following figure gives the movement of an object. Select the corre...
Text Solution
|
The escape speed of a projectile on the earth's surface is 11.2 km s^(...
Text Solution
|
Which of the following cylindrical rods will conduct most heat, when t...
Text Solution
|
For which combination of working temperature, the efficiency of Carnot...
Text Solution
|
A thin flexible wire of length L is connected to two adjacent fixed po...
Text Solution
|
A train of 150 m length is going toward north direction at a speed of ...
Text Solution
|
A photon of energy 10.2 eV corresponds to light of wavelength lamda(0...
Text Solution
|
The level of water in a tank is 5 m high . A hole of the area 10 cm^2 ...
Text Solution
|
A simple pendulum is vibrating with an angular amplitude of 90^(@) as ...
Text Solution
|
In CE NPN transistor 10^(10 electrons enter the emitter in 10^(-6) s w...
Text Solution
|
An 1800 W toaster, a 1.3 kW electric fan and a 100 W lamp are plugged ...
Text Solution
|
If v-(A)/(t)+Bt^(2)+Ct^(3) where v is velocity, t is time and A, B and...
Text Solution
|
In figure wheel A of radius rA = 10 cm is coupled by belt B to wheel C...
Text Solution
|
A man is watching two trains, one leaving and the other coming in with...
Text Solution
|
A body is moved along a straight line by a machine delivering constant...
Text Solution
|
In the circuit shown, the resistance of each of resistor is R=100Omega...
Text Solution
|