Hot questions

0 votes

0 answers

Explain quantitatively the order of magnitude difference between the diamagnetic susceptibility of N2 (~5 × 10–9) (at STP) and Cu

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

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

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Suppose we want to verify the analogy between electrostatic and magnetostatic by an explicit experiment. Consider the motion of magnetic dipole m in a magnetic field B. Write down a set of conditions on E, B, p, m so that the two motions are verified to be identical. (Assume

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Assume the dipole model for earth’s magnetic field B which is given by BV = vertical component of magnetic field = `μ_0 /(4π) (2mcosθ )/r^3 ` BH = Horizontal component of magnetic field = `μ_0 /(4π) (sinθm)/r^3 ` θ = 90° – lattitude as measured from magnetic equator. Find loci of points for which

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

There are two current carrying planar coils made each from identical wires of length L. C1 is circular (radius R ) and C2 is square (side a). They are so constructed that they have same frequency of oscillation when they are placed in the same uniform B and carry the same current. Find a in terms of

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

In a cyclotron, a charged

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Describe the motion of a charged particle in a cyclotron if the frequency of the radio frequency (rf) field were

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

If the strangth of the magnetic field produced at 10 cm away from a infinilely long straight conductor is `10^(-5)` tesla. The value of the current flowing in the conductor will be...............

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A long straight wire of radius 'a' carries a steady current I the current is uniformly distributed across its cross-section. The ratio of the magnetic field at a/2 and 2a is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

The distance at which the magnetic field on axis as compared to the mag. field at the centre of the coil carrying current I and radius R is , `1/8` would

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A long solenoid has 200 turns per cm and carries a current of 2.5 Amp. The mag. field at its centre is ......................

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Two wires of same length are shaped into a square and a circle. If they carry same current, ratio of the magnetic moment

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A proton and an particle are projected with the same kinetic energy at right angles to the uniform mag. field. Which one of the following statements will be

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

The forces existing between two parallel current carrying conductors is F. If the current in each conductor is doubled, then the value of force will

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A straight rod of mass m and length L is suspended from the two idential springs as shown in figure. The spring is streched a distawnce `y_0` due to the weight of the wire. The circuit has total resistance R. when the magnetic field perpendicular to the plane of paper is switched on, springs are observed to extend further by the same distance `y_0` the magnetic strength is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A closed Loop PQRS carrying a current is placed in a uniform magnetic field. If the magnetic forces on segment PS, SR and RQ are F1 , F2 and F3 respectivley and are in the plane of the paper and along the directions shown, the force on the segment QP is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A Loop carrying current I lies in XY - plane as shown in the figure. The unit vector `hatk` is comming out of the plane of the paper. The magnetic moment of the current Loop

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

An infinitely long hollow conducting cylinder with inner radius `R/2` and outer radius R carries a uniform current density along its length. The magnitude of the magnetic field `|vecB|` as a function of the radial distance r from the axis is best represented

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

If a magnet of pole strength m is divided into four parts such that the length and width of each part is half that of initial one, then the pole strength of each part will

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A small bar magnet has a magnetic moment 1.2 A.`m^2` . The magnetic field at a distance 0.1 m on its axis will be .........................

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

Hot questions

Categories