In a room heater an alternating current given by the

Last updated: 6/11/2023

In a room heater an alternating current given by the expression A cos ot B sin ot produces heat at the same rate as that by a direct current I The direct current is given by the expression A I dc B I dc C ldc A B 2 A B 2 D Idc A B 2 2 A B 490