A short-circuited coil is placed in a ti...

A short-circuited coil is placed in a time-varying magnetic field. Electrical power is dissipated due to the current induced in the coil. If the number of turns were to be quadrupled and the wire radius halved, then the electrical power dissipated would be

halved

the same

doubled

quadrupled

Text Solution

Verified by Experts

Topper's Solved these Questions

ELECTROMAGNETIC INDUCTION
AAKASH SERIES|Exercise EXERCISE - I (MAGNETIC FLUX, FARADAY.S LAW, LENZ.S LAW, AC GENERATOR)|26 Videos
ELECTROMAGNETIC INDUCTION
AAKASH SERIES|Exercise EXERCISE - I (SELF AND MUTUAL INDUCTION)|16 Videos
ELECTROMAGNETIC INDUCTION
AAKASH SERIES|Exercise EXERCISE-II|32 Videos
ELECTRIC FIELD AND POTENTIAL
AAKASH SERIES|Exercise PROBLEMS (LEVEL-II)|26 Videos
ELECTROMAGNETIC WAVES
AAKASH SERIES|Exercise EXERCISE -II|22 Videos

Similar Questions

Explore conceptually related problems

A short-circuited coil is placed in a time-varying magnetic field. Electrical power is dissipated due to the current induced in the coil. If the number of turns were to be quadrupled and the wire radius halved, the electrical power dissipated would be

A close loop is placed in a time-varying magnetic field. Electrical power is dissipated due to the current induced in the coil. If the number of turns were to be quadrupled and the wire radius halved keeping the radius of the loop unchanged, the electrical power dissipated would be :

A coil carrying electric current is placed in uniform magnetic field

A circular loop of radius 1m is placed in a varying magnetic field given as B=6t Tesla, where t is time in sec. (a)Find the emf induced in the coil if the plane of the coil is perpendicular to the magnetic field. (b) Find the electric field in the tangential directin, induced due to the changing magnetic field. (c)Find the current in the loop if its resistance is 1Omega//m .

A circular coil of 25 turns and radius 12 cm is placed in a uniform magnetic field of 0.5 T normal to the plane of the coil. If the current in the coil is 6 A then total torque acting on the coil is

A circular coil of 25 turns and radius of 12 cm is placed in a uniform magnetic field of 0.5 T normal to the plane of coil. If the current in the coil is 5 A, then total torque experienced by the coil is

Figure shows a wire frame PQSTXYZ placed in a time varying magnetic field given as B=betat , where beta is a positive constant.Resistance per unit length of the wire is lambda .Find the current induced in the wire and draw its electrical equivalent diagram.

A ciruclar coil of 20 turns and radius 10cm is placed in a uniform magnetic field of 0.1T normal to the plane of the coil . If the current in the coil is 5.0A what is the average force on each electron in the coil due to the magnetic field ( The coil is made of copper wire of cross - sectional area 10^(-5)m^(2) and the free electron density in copper is given to be about 10^(29)m^(-3)) .

How will the magnetic field induction at the centre of a circular coil carrying current change, if the current through the coil is doubled and the radius of the coil is halved?

A circular coil of n turns and radius r carries a current I. The magnetic field at the centre is

AAKASH SERIES-ELECTROMAGNETIC INDUCTION-EXERCISE-III

A horizontal wire is freee to slide on the vertical rails of a conduct...
Text Solution
|
A metal rod of resistance R is fixed along a diameter of a conducting ...
Text Solution
|
An annular disc of copper with inner and outer radii r and R is rotati...
Text Solution
|
A rectangular loop with a sliding connector of length l=10m is the si...
Text Solution
|
A squre loop of side a is placed in the same plane as a long stainght ...
Text Solution
|
A square metal wire loop of side 20 cm and resistance 2Omega is moved ...
Text Solution
|
IN a retangle ABCD (BC = 2AB). The moment of inertia along which aix...
Text Solution
|
A rectangulare loop of length l and breadth b is placed at distance of...
Text Solution
|
A conducting square frame of side .a. and a long straight wire carryin...
Text Solution
|
If current is decreasing at a rate of 1000 As^(-1) p.d. between A and ...
Text Solution
|
A coil is wound on a rectangular frame. Keeping the number of turns pe...
Text Solution
|
When the current in the portion of the circuit shown in the figure is...
Text Solution
|
A small square loop of wire of side l is placed inside a large square ...
Text Solution
|
The coefficient of mutual induction between two coils is 4H. If the cu...
Text Solution
|
A 50 Hz AC current of crest value 1 A flows through the primary of a t...
Text Solution
|
Two coils have self-inductance L(1)=4mHandL(2)=1mH respectively. The c...
Text Solution
|
A short-circuited coil is placed in a time-varying magnetic field. Ele...
Text Solution
|
Shown in the figure is a circular loop of radius, r and resistance R. ...
Text Solution
|
A uniform magnetic field is restricted within a region of radius r. Th...
Text Solution
|
A magnetic flux through a stationary loop with a resistance R varies d...
Text Solution
|