A line having a total resistance of ` 0.2 omega` delivers `10 KW at 220 V` to a small factory . Calculate the efficiency of transmission .

A line having a total resistance of 0.2Omega delivers 10kW at 220V to a small factory. Calculate the efficiency of the transmission.

A line having a total resistance of 0.5Omega deliver 15kW at 240 V to a small factory . The efficiency of transmission is :

An electrical cable having a resistance of 0.2Omega delivers 10kw at 200V D.C to a factory. What is the efficiency of transmission?

An electrical power line, having a total resistance of 2Omega , delivers 1kW at 220 V. The efficiency of the transmission line is approximately :

An electrical power line, having a total resistance of 2Omega , delivers 1kW at 220 V. The efficiency of the transmission line is approximately :

A light bulb is rated at 100 W for a 220 V a.c. supply. Calculate the resistance of the bulb.

A bulb of resistance 400 Omega is connected to 220 V mains. Calculate the magnitude of current.