Question

Magnetic materials used for making permanent magnets (P) and magnets in a transformer (T) have different properties of the following, which property best matches for the type of magnet required ?

(1) T : Large retentivity, large coercivity

(2) P : Large retentivity, large coercivity

(3) T : Large retentivity, small coercivity

(4) T : Small retentivity, large coercivity

Comments

Magnetic effects of current and magnetism

Answer 1

Ans. (2) P : Large retentivity, large coercivity

Sol. Based on theory