A coil is wound on an iron core and looped back on itself so that the core has two sets of in opposite senses. How is its self inductance affected ?

A coil is wound on an iron core and looped back on itself so that the core has two sets of closely wound wires in series carrying current in the opposite senses. What do you expect about its self-inductance? Will it be large or small?

A coil is wound on an iron core and looped back on itself so that the core has two sets of clsely wound wires in series carrying current in opposite senses. What do you expect about its self inductance? Will it be large or small?

The number of turns of a coil is doubled. How will its self-inductance be effected?

A toroid is wound over a circular core. Radius of each turn is r and radius of toroid is R(>>r). The Coefficient of self - inductance of the toroid is given by

A toroid is wound over a circular core. Radius of each turn is r and radius of toroid is R (gt gt r) . The coefficient of self-inductance of the toroid is given by

A toroid is wound over a circular core. Radius of each turn is r and radius of toroid is R (gt gt r) . The coefficient of self-inductance of the toroid is given by

Two insulated wires are wound on the same hollow cylinder so as to form two solenoids sharing a common air-filled core. Let l be the length of the core, A the cross -sectional area of the core, N_(1) the number of times the first wire is wound around the core, and N_(2) the number of times the second wire is wound around the core. Find the mutual inductance of the two solenoids, neglecting the end effects.

Two insulated wires are wound on the same hollow cylinder, s as to from two solenoids shering a common air-filled core. Let l be the length of the core, A the cross -sectional area of the core, N_(1) the number of times the first wire is wound around the core, and N_(2) the number of times the second wire is wound around the core. Find the mutual inductance of the two solenoids, neglecting the end effects.