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0:11:29

A short bar magnet placed with its axis at 30 with an external field of 800 G experience a torque of

0:05:46

In Fig. 5.4(b), the magnetic needle has magnetic moment 6.7*10-2 Am2 and moment of inertia I = 7.5

0:05:10

A circular coil of 30 turns and radius 8.0 cm carrying a current of 6.0 A is suspended vertically in

0:05:11

In Exercise 4.11obtain the frequency of revolution of the electron in its circular orbit. Does the

0:06:09

In a chamber, a uniform magnetic field of 6.5 G ( 1G = 10-4 T) is maintained. An electron is short

0:06:32

Two moving coil meters, M1 and M2 have the following particulars

0:04:01

A square coil of side 10 cm consists of 20 turns and carries a current of 12 A. The coil is

0:02:57

A closely wound solenoid 80cm long has 5 layers of windings of 400 turns each. The diameter of the

0:04:11

Two long and parallel straight wires A and B carrying currents of 8.0 A and 5.0 A in the same direct

0:02:54

A 3.0 cm wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis.

0:02:36

What is the magnitude of the magnetic force per unit length on a wire carrying a current of 8 A

0:03:16

A horizontal overhead power line carries a current of 90 A in east to west direction.

0:03:14

A long straight wire in the horizontal plane carries a current of 50 A in north to south direction.

0:02:37

A long straight wire carries a current of 35 A. What is the magnitude of field B at a point 20 cm

0:04:41

A circular coil of wire consisting of 100 turns, each of radius 8.0 cm carries a current of 0.40 A.

0:05:03

In the circuit (Fig. 4.27) the current is to be measured. What is the value of

0:09:38

A current-carrying circular loop lies on a smooth horizontal plane. Can a uniform magnetic field be

0:18:02

A 100 turn closely wound circular coil of radius 10 cm carries a current of 3.2 A. (a) what is the

0:07:20

The horizontal component of earths magnetic field at a certain place is 3.0*10^-5 T and the directio

0:04:02

A solenoid of length 0.5 m has a radius of 1 cm and is made up of 500 turns. It carries a current of

0:14:28

Figure 4.15 shows a long straight wire of a circular cross-section ( radius a) carrying steady curre

0:03:34

Consider a tightly wound 100 turn coil of radius 10 cm, carrying a current of 1 A. What is the magni

0:11:13

A straight wire carrying a current of 12A is bent into a semi-circular arc of radius 2.0 cm as shown

0:06:50

An element dl = da i is placed at the origin and carries a large current I = 10A ( Fig. 4.10). What