11 kW of electric power can be transmitted to a distant station at (i) 220 V (ii) 22000 V. Which of the two transmission modes be preferred and why ? Support your answer with calculations.

An electric power station ( 100 MW) transmits power to a distant load through long and thin cables. Which of the two modes of transmission would result in lessere power wastage : Power transmission of : (i) 20,000 V or (ii) 200 V?

An electric power station ( 10 MW) transmits power to a distant load through long and thin cables. Which of the two modes of transmission would result in lessere power wastage : Power transmission of : (i) 20,000 V or (ii) 200 V?

An electric power station (100MW) transmits power to a distant load through long and thin cables. Which of the two modes of transmission would result in lesser power wastage: transmission of: (i) 20,000 V or (ii) 200V?

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 :

An electric power station transmits 100 MW power through log and thin cable. If the transmission is at 20,000V and at 200V, in which case the power loss would be lesser?

Which of the following waves can be polarized (i) Heat (ii) Sound waves ? Give reason to support your answer.

A small town with a demand of 800 kW of electric power at 220 V is situated 15 km away from an electric plant generating power at 440 V. The resistance of the two wire line carrying power is 0.5 Omega per km. The town gets power from the line through a 4000-220 V step-down transformer at a sub-station in the town. Flow much power must the plant supply, assuming there is negligible power loss due to leakage?