A coil is suspended in a uniform magneti...

A coil is suspended in a uniform magnetic field, with the plane of the coil parallel to the magnetic lines of force. When a current is passed through the coil it starts oscillating, it is very difficult to stop. But if an aluminium plate is placed near to the coil, it stops. This is due to :

A

development of air current when the plate is placed

B

induction of electrical charge on the plate

C

shielding of magnetic lines of force as aluminium is a paramagnetic material

D

Electromagnetic indution in the aluminium plate giving rise to electromagnetic damping

Text Solution

Verified by Experts

The correct Answer is:

D

Promotional Banner

Promotional Banner

Topper's Solved these Questions

ELECTROMAGNETIC INDUCTION
RESONANCE ENGLISH|Exercise Exercis-3 PART 3|16 Videos
ELECTROMAGNETIC INDUCTION
RESONANCE ENGLISH|Exercise A.l.P|19 Videos
ELECTROMAGNETIC INDUCTION
RESONANCE ENGLISH|Exercise Exercis-3 PART 1|18 Videos
ELECTRODYNAMICS
RESONANCE ENGLISH|Exercise Advanced level problems|31 Videos
ELECTROSTATICS
RESONANCE ENGLISH|Exercise HLP|40 Videos

Similar Questions

Explore conceptually related problems

When a current carrying coil is placed in a uniform magnetic field with its magnetic moment anti-parallel to the field.

When a current carrying coil is placed in a uniform magnetic field with its magnetic moment anti-parallel to the field.

The magnetic field at the centre of the current carrying coil is

A rectangular coil is placed in a region having a uniform magnetic field B perpendicular to the plane of the coil. An emf will not be induced ion the coil if the

A current carrying coil is subjected to a uniform magnetic field. The coil will orient so that its plane become

A current carrying coil is subjected to a uniform magnetic field. The coil will orient so that its plane become

A coil carrying electric current is placed in uniform magnetic field

A coil is rotated in a uniform magnetic field about an axis perpendicular to the field. The emf induced in the coil would be maximum when the plane of coil is :

A coil is placed in a constant magnetic field. The magnetic field is parallel to the plane of the coil as shown in Fig. 3.28. Find the emf induced in the coil if B increasing.

If plane of coil and uniform magnetic field B(4T0 is same then torque on the current carrying coil is

RESONANCE ENGLISH-ELECTROMAGNETIC INDUCTION-Exercis-3 PART 2

One conducting U-tube can slide inside another as shown in figure, mai...
Text Solution
|
A coil of inductance 300 mH and resistance 2Omega is conneted to a sou...
Text Solution
|
An inductor (L = 100 mH), a resistor (R = 100Omega) and a battery (E =...
Text Solution
|
Two coaxial solenods are made by winding thin insulated wire over a pi...
Text Solution
|
An inductor of inductance L = 400 mH and resistors of resistances R(1)...
Text Solution
|
A rectangular loop has a sliding connector PQ of length l and resistan...
Text Solution
|
A fully charged capacitor C with initial charge Q(0) is connected to a...
Text Solution
|
A boat is moving due east in a region where the earth's magnetic field...
Text Solution
|
A horizontal straight wire 20 m long extending from east to west falli...
Text Solution
|
A coil is suspended in a uniform magnetic field, with the plane of the...
Text Solution
|
A metallic rod of length 'l' is tied to a string of length 2l and made...
Text Solution
|
A circular loop of radius 0.3 cm lies parallel to a much bigger circul...
Text Solution
|
In an LCR circuit as shown below both switches are open initially. Now...
Text Solution
|
In the circuit shown here, the point 'C' is kept connected to point 'A...
Text Solution
|
An inductor (L = 0.03H) and a resistor (R = 0.15Omega) are connected i...
Text Solution
|
An LCR curcuit is equivalent to a damped pendulum. In an LCR circuit t...
Text Solution
|