Energy required to establish a current o...

Energy required to establish a current of 4 A in a coil of self-inductance L=200 mH is

0.16 J

0.18 J

0.40 J

1.6 J

Text Solution

Verified by Experts

The correct Answer is:

Energy stored in a self-inductor,
`E=(1)/(2)Li^(2)=(1)/(2)xx200xx10^(-3)[4]^(2)=1.6J`

Topper's Solved these Questions

ELECTROMAGNETIC INDUCTION
MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Example 30|1 Videos
ELECTROMAGNETIC INDUCTION
MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CONER|34 Videos
ELECTROMAGNETIC INDUCTION
MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Example 1|127 Videos
ELASTICITY
MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|16 Videos
ELECTRONS AND PROTONS
MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|19 Videos

Similar Questions

Explore conceptually related problems

Energy needed to establish an alternating current I in a coil of self inductance L is

The unit of self inductance of a coil is

A magnetic flux of 8X10^(-4) weber is linked with each turn of a 200 - turn coil when thereis an electric current of 4 A in it. Calculate the self inductance of the coil.

The coefficient of self inductance of a coil is

A magnetic flux of 9 xx 10^(-4) weber is linked with each turn of a 200 turn coil when there is an electric current of 3 A in it. The self inductance of the coil is

The currents flowing in the two coils of self - inductance L_(1)= 20 m H and L_(2) = 15 mH are increasing at the same rate. If the the power supplied to the two coils is equal find the ratio of (i) induced voltages (ii) the currents and (iii) the energies stored in the two coils at a given instant.

The current flowing in a coil of self-inductance 0.4 mH is increased by 250mA in 0.1 sec. the e.m.f. induced will be

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-ELECTROMAGNETIC INDUCTION-Example 2

The ratio of secondary to primary turns is 4:5. if power input is P, t...
Text Solution
|
O is the centre of two coplanar concentric circular conductors, A and ...
Text Solution
|
In an circuit, V and I are given by V=150sin(150t) V and I =150sin(150...
Text Solution
|
Alternating current can not be measured by D.C. Ammeter because
Text Solution
|
A bulb is connected first with DC and the then AC of same voltage then...
Text Solution
|
The figure shows an experimental plot discharging of a capacitor in an...
Text Solution
|
In an AC circuit, the current is given by i=5sin(100t-(pi)/2) and the ...
Text Solution
|
In an AC circuit I=100sin 200pit. The time required for the current to...
Text Solution
|
In a series resonant LCR circuit the voltage across R is 100 volts and...
Text Solution
|
In the given circuit, the AC source has (omega) = 100 rad//s. Consider...
Text Solution
|
A metal conductor of length 1m rotates vertically about one of its end...
Text Solution
|
Energy required to establish a current of 4 A in a coil of self-induct...
Text Solution
|
The maximum voltage in DC circuit is 282 V. the effective voltage in A...
Text Solution
|
A generator produces a time varying voltage given by V=240 sin 120 t, ...
Text Solution
|
An AC is given by the equation i=i(1)cos omegat+i(2)sin omegat. The r....
Text Solution
|
The average current in terms of l(0) for the waveform shown is
Text Solution
|
The alternating current in a circuit is described by graph shown in fi...
Text Solution
|
An AC circuit consists of a 220Omega resistance and a 0.7 H choke. Fin...
Text Solution
|
Match the following column I to column II.
Text Solution
|
A square loop is symmetrically placed between two infinitely long curr...
Text Solution
|