The coil of choke in a circuit

The coil of a choke in a circuit

What is the use of choke coil in AC circuit? Can we use a rheostat in place of choke coil for the same purpose?

Can a capacitor of suitable capacitance replace a choke coil in an ac circuit?

Can a capacitor of suitable capacitance replace a choke coil in an ac circuit?

In the steady state condition the rate of heat produced in a choke coil is P . The time constant of the choke coil is tau . If now the choke coil is short circuited, then the total head dissipated in the coil is

In the steady state condition the rate of heat produced in a choke coil is P . The time constant of the choke coil is tau . If now the choke coil is short circuited, then the total head dissipated in the coil is

Questions based on Power in an ac circuit | Resonant frequency | Choke coil | Oscillation in LC Circuit | RMS Current |Peakcurrent | Instantaneous current

A choke coil is preferred to a rheostate in AC circuit as