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0:01:30

A hairpin like shape as shown in figure is made by bending a long current carrying wire. What is the

0:04:51

Magnitude of magnetic field (in SI units) at the centre of a hexagonal shape coil of side 10 cm,

0:01:13

A galvanometer coil has 500 turns and each turn has an average area of 3×10–4 m2. If a torque of

0:01:40

A galvanometer of resistance G is converted into a voltmeter of range 0–1V by connecting a resistanc

0:02:29

A proton, an electron, and a Helium nucleus, have the same energy. They are in circular orbitals in

0:01:53

Find the magnetic field at point P due to a straight-line segment AB of length 6 cm carrying a curr

0:02:50

A moving coil galvanometer has a coil with 175 turns and area 1 cm2 It uses a torsion band of torsio

0:01:41

Two very long, straight and insulated wires are kept at 900 angle from each other In xy–plane as

0:01:46

A circular coil having N turns and radius r carries a current I. It is held in the XZ plane in a mag

0:03:29

A rigid square loop of side ‘a’ and carrying current I2 is laying on a horizontal surface near a lon

0:02:29

An electron, a proton and an alpha particle having the same kinetic energy are moving in circular

0:02:11

A particle of charge −16×10−18 coulomb moving with velocity 10 ms−1 along the x-axis enters a region

0:02:25

Two identical conducting wires AOB and COD are placed at right angles to each other. The wire AOB

0:02:29

A charged particle carrying charge 1 μC is moving with velocity (2i ̂+3j ̂+4k ̂)m/s. If an external

0:01:31

The resistance of a galvanometer is 50 ohm and the maximum current which can be passed through it

0:02:20

A square loop is carrying a steady current I and the magnitude of its magnetic dipole moment is m.

0:01:10

A galvanometer having a coil resistance 100Ω gives a full scale deflection when a current of 1 mA is

0:01:40

A galvanometer, whose resistance is 50 ohm, has 25 divisions in it. When a current of 4 x 10–4 A pas

0:01:19

When a current of 5 mA is passed through a galvanometer having a coil of resistance 15Ω, it shows f

0:01:45

The dipole moment of a circular loop carrying a current I, is m and the magnetic field at the centre

0:04:07

A current loop, having two circular arcs joined by two radial lines is shown in the figure. It carri

0:01:31

A galvanometer with its coil resistance 25 Ω requires a current of 1 mA for its full deflection. In

0:04:08

Two identical wires A and B, each of length 'L', carry the same current I. Wire A is bent into a cir

0:01:21

In a region, steady and uniform electric and magnetic fields are present. These two fields are para