Ferrites are …… materials? Mark as favorite Copy Link paramagnetic diamagnetic ferromagnetic none of the above Check Answer
A rectangular magnet of magnetic moment M is cut into two piece of same length, the magnetic moment of each piece will be? Mark as favorite Copy Link M M/2 2 M M/4 Check Answer
Indicate which of the following material does not retain magnetism permanently? Mark as favorite Copy Link Soft iron Stainless steel Hardened steel None of the above Check Answer
The left hand rule correlates to? Mark as favorite Copy Link current, induced e.m.f. and direction of force on a conductor magnetic field, electric field and direction of force on a conductor self induction, mutual induction and direction of force on a conductor current, magnetic field and direction of force on a conductor Check Answer
The bar magnet has? Mark as favorite Copy Link the dipole moment monopole moment (a) and (b) both none of the above Check Answer
In a simple magnetic field the strength of magnet flux? Mark as favorite Copy Link is constant and has same value in energy part of the magnetic field increases continuously from initial value to final value decreases continuously from initial value to final value first increases and then decreases till it becomes zero Check Answer
A magnetic field exists around? Mark as favorite Copy Link iron copper aluminium moving charges Check Answer
Strength of an electromagnet can be increased by? Mark as favorite Copy Link increasing the cross-sectional area increasing the number of turns increasing current supply all above methods Check Answer
Which of the following statements is correct? Mark as favorite Copy Link The conductivity of ferrites is better than ferromagnetic materials The conductivity of ferromagnetic materials is better than ferrites The conductivity of ferrites is very high The conductivity of ferrites is same as that of ferromagnetic materials Check Answer
Gilbert is a unit of? Mark as favorite Copy Link electromotive force magnetomotive force conductance permittivity Check Answer