Recent questions tagged magnetic effects of electric current

+3 votes

1 answer

Earth'* magnetic field always has a horizontal component except at :

asked Apr 7, 2019 in Class 12 by kratos

+2 votes

1 answer

From molecular view point, discuss the temperature dependence of susceptibility for diamagnetism, paramagnetism and ferromagnetism.

asked Apr 6, 2019 in Class 12 by kratos

+2 votes

1 answer

Two long current carrying thin wires, both with current I, are held by insulating threads of length L and are in equilibrium

asked Apr 6, 2019 in JEE by kratos

+2 votes

1 answer

How will you show that like charges repel and unlike charges attract each other ?

asked Apr 6, 2019 in Class 10 by kratos

+3 votes

1 answer

With the help of an activity, explain the method of inducing electric current in a coil with a moving magnet.

asked Apr 6, 2019 in Class 10 by kratos

+1 vote

1 answer

Two identical short bar magnets, each having magnetic moment M are placed a distance of 2d apart

asked Apr 6, 2019 in JEE by kratos

+1 vote

1 answer

What is the Full Form of MRI ?

asked Apr 5, 2019 in Class 12 by kratos

+3 votes

1 answer

Explain the working of DC generator with a neat diagram

asked Apr 5, 2019 in Class 10 by kratos

+2 votes

1 answer

Sunlight reaches to us in composite form and not in its constituent colours because

asked Apr 5, 2019 in Class 12 by kratos

+3 votes

1 answer

The distance at which the magnetic field on axis as compared to the mag.

asked Apr 5, 2019 in JEE by kratos

+3 votes

1 answer

Give the significance of the following in a domestic circuit: (i) electric meter (ii) earthing

asked Apr 4, 2019 in Class 10 by kratos

+1 vote

1 answer

Why does a compass needle get deflected when brought near a bar magnet

asked Apr 4, 2019 in Class 10 by kratos

+2 votes

1 answer

Of what substance are the brushes of an electric motor made ?

asked Apr 4, 2019 in Class 10 by kratos

+3 votes

1 answer

A coil is wound on an iron rod and connected to an ac source as shown in fig. Two more coils AB and CD are also wound on the same rod.

asked Apr 4, 2019 in Class 10 by kratos

+3 votes

1 answer

Describe the working of an AC generator with the help of a labelled circuit diagram.

asked Apr 4, 2019 in Class 10 by kratos

+2 votes

1 answer

A rectangular loop of sides 10 cm and 5 cm carrying a current I of 12 A is placed in different orientations as shown in the figures below.

asked Apr 3, 2019 in JEE by kratos

+3 votes

1 answer

The device used for producing electric current is called a

asked Apr 3, 2019 in Class 10 by kratos

+2 votes

1 answer

State the rule which gives the direction of force acting on the conductor.

asked Apr 3, 2019 in Class 10 by kratos

+1 vote

1 answer

A long straight wire carrying current of 30 Amp is placed in an external uniform mag.

asked Apr 3, 2019 in JEE by kratos

+2 votes

1 answer

Commercial electric motors do not use

asked Apr 2, 2019 in Class 10 by kratos

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