Magnetic field due to current Questions

A non planer loop of conduction wire carrying a current along I is placed as shown in the figure. Each of the staright sections of the loop is length 2a. The magnetic field due to this loop at the poi...

Following figures show the arrangement of bar magnets in different configurations. Each magnet has magnetic dipole moment . Which configuration has highest net magnetic dipole moment? a. b. c. d....

A thin semicircular conducting ring (PQR) of radius r is falling with its plane vertical in a horizontal magnetic field B, as shown in figure. The potential difference developed across the ring when i...

Match the following :-(i) Magnetic flux (a) tesla(ii) Magnetic flux density (b) weber(iii) Relative permeability (c) no unit(iv) Magnetic field intensity (d) ampere/meter...

An electron moving in a circular orbit of radius r makes n rotations per second. The magnetic field produced at the center has magnitude :

A wire carrying current I has the shape as shown in adjoining figure. Linear parts of the wire are very long and parallel to X-axis while semicircular portion of radius R is lying in Y-Z plane. Magnet...

A long straight wire of radius a carries a steady current I. the current is uniformly distributed over its cross-section. The ratio of the magnetic fields B and B′, at radial distances a/2 and 2...

The dipole moment of a circular loop carrying a current I, is m and the magnetic field at the centre of the loop is B1. When the dipole moment is doubled by keeping the current constant, the magnetic ...

Two similar coils of radius R are lying concentrically with their planes at right angles to each other. Thecurrents flowing in them are I and 2I, respectively. The resultant magnetic field induction a...

Two identical long conducting wires AOB and COD are placed at right angle to each other, with one above other such that O is their common point for the two. The wires carry I1 and I2 currents, respect...

A circular current carrying loop of radius R is bent about its diameter by 90o and placed in a magnetic field = B0 (î + ĵ) as shown in ,figure....

A particle of charge + q and mass m moving under the influence of a uniform electric field Eî and uniform magnetic field B follows a trajectory from P to Q as shown in figure. The velocities at P...

A bar magnet of length ′l′ and magnetic dipole moment ′M′ is bent in the form of an arc as shown in figure. The new magnetic dipole moment will be...

A conductor lies along the z-axis at -1.5 ≤ z direction(see figure). For a field = 3.0 × 10-4e-0.2x T, find the power required to move the conductor at constant speed to x = 2.0 m, y = 0 m ...

A steady current I flows along an infinitely long hollow cylindrical conductor of radius R. This cylinderis placed coaxially inside an infinite solenoid of radius 2R. The solenoid has n turns per unit...

A conductor (shown in the figure) carrying constant current I is kept in the x-y plane in a unfirom magnetic field . If F is the magnitude of the total magnetic force acting on the conductor, then the...

A uniform magnetic field B exists in the region between x = 0 and x = 3R2(region 2 in the figure) pointing normally into the plane of the paper. A particle with charge +Q and momentum p directed along...

Two thin long parallel wires separated by a distance b are carrying a current i amp each. The magnitude of the force per unit length exerted by one on the other is...

A current I flow along the length of an infinitely long, straight, thin-walled pipe. Then

A battery is connected between two points A and B on the circuimference of a uniform conducting ring of radius r and resistance R. One of the arc AB of the ring substends an angle θ at the centre...