Achiever Study Plan ESE-2018: Electromagnetic Field Theory Quiz 6

A magnetic ring has a mean circumference of 20 cm and a cross-section of 20 cm² and has 800 numbers of turns of wire. When the exciting current is 5 A, the flux is 2 mWh. The relative permeability of iron is nearly

What is the force on a unit charge moving with velocity in presence of electric field and magnetic field ?

A circular loop placed perpendicular to a uniform sinusoidal magnetic field of frequency ω₁ is revolved about an axis through its diameter at an angular velocity ω₂ rad/sec (ω₂ < ω₁) as shown in the figure below. What are the frequencies for the e.m.f. induced in the loop?

Two conductors of a transmission line carry equal current I in opposite directions. The force on each conductor is proportional to

A conductor of length 100 cm moves at right angle to a uniform field flux density of 1.5 Wb/m with a velocity of 50 m/s. The e.m.f. induced in the conductor will be

The magnetic flux density created by an infinitely long conductor carrying a current I at a radial distance R is