(b) A coil of inductance 318.3 mH and negligible resistance is connected in series with a 200 2 resistor to a 240 V, 50 Hz supply. Calculate (i) the inductive reactance of the coil, (ii) the
impedance of the circuit, (iii) the current in the circuit, (iv) the p. d. across cach component,
and (v) the circuit phase angle.

Ametal ring 4.20 cm in diameter is placed between the north and south poles of large magnets with the plane of its area perpendicular to the magnetic field. these magnets produce an initial uniform field of 1.12 t between them but are gradually pulled apart, causing this field to remain uniform but decrease steadily at 0.240 t/s . (a) what is the magnitude of the electric field induced in the ring? (b) in which direction (clockwise or counterclockwise) does the current flow as viewed by someone on the south pole of the magnet?