A student connects a long air cored - coil of manganin wire to a 100 V D.C. supply and records a current of 25 amp. When the same coil is connected across 100 V. 50 Hz A.C. the current reduces to 20 A , the reactance of the coil is :-

A student connects a long air cored coil of maganin wire to a 100 V dc source and records a current of 1.5 A. When the same coil is connected across 100 V, 50 Hz ac source the current is reduces to 1.0 A. (a) Give reason for your observation (b) Calculate the reactance of the coil.

When a coil is connected to a 100 V D.C. supply, the current is 2 A. When the same coil is connected to A.C. source E=100sqrt(2) sin omega t , the current is 1 A. Find the inductive reactance used in the circuit.

When a coil is connected to a 100 V D.C. supply, the current is 2 A. When the same coil is connected to A.C. source E=100sqrt(2) sin omega t , the current is 1 A. Find the inductive reactance used in the circuit.

A coil when connected across a 10 V d.c. supply draws a current of 2 A. When it is connected across 10 V - 50 hz a.c. supply the same coil draws a current of 1 A. Explain why? Hence determine self inductance of the coil.

When an inductor coil is connected to an ideal battery of emf 10V, a constant current 2.5 A flows. When the same inductor coil is connected to an ac source of 10V and 50 HZ then the current is 2A. Find out the inductance of the coil.

When an inductor coil is connected to an ideal battery of emf 10V, a constant current 2.5 S flows. When the same inductro coil is connected to an ac source of 10V and 50 HZ then the current is 2A. Find out the inductance of the coil.

A capacitor of 50 muF is connected across a 100 V, 50 Hz a.c. supply. Find the reactance and the r.m.s. current.