A 1 kQ heater is meant to operate at 200 V. (a) what is its resistance ? (b) How much power will it consume if the line voltage drops to 100 V? (c) how many units of electrical energy will it consume in a month (of 30 days) if it operates 10 hr daily at the specified voltage?

A 1kW heater is meant to operate at 200 V. (a) What is its resistance ? (b) How much power will it consume if the line voltage drops to 100 V ? (c ) How many units of electrical energy will it consume in a month (of 30 days) if it operates 10 hr daily at the specified voltage?

A 1 k W heater is meant to operate at 200 V . (a) What is the resistance? (b) How much power will it consume if the line voltage drops to 100 V ? ( c ) How many units of electrical energy will it consume in a month ( of 30 days) if it operates 10 h daily at the specified voltage ( 200 V) ?

A 1 k W heater is meant to operate at 200 V . (a) What is the resistance? (b) How much power will it consume if the line voltage drops to 100 V ? ( c ) How many units of electrical energy will it consume in a month ( of 30 days) if it operates 10 h daily at the specified voltage ( 200 V) ?

Five bulbs, each rated at 40 W-220 V are used for 5 hours daily on 20 V line. How may units of electric energy is consumed in a month of 30 days?

A 500 W heating unit is designed to operate from a 200 V line . By what percentage will its heat output drop if the line voltage drops to 160 V ? Find the heat produced by it in 10 min.

A 500 W heating unit is designed to operate from a 200 V line . By what percentage will its heat output drop if the line voltage drops to 160 V ? Find the heat produced by it in 10 min.

An electric iron is rated "220 V, 1 kW'. Under normal working conditions, find : the power consumed if the line voltage falls to 180 V.