A 1 kW 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) ?

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 100 W electric bulb is used for 10 hours a day. How many units of energy are consumed in 30 days?

An electric iron is rated as 220 V-850W. What is the resistance of its heating element ? How much current will it draw when the rated voltage is applied on it ?

An electric bulb of power of power 40 W is lighted daily for 8 hours for 15 days how many units of eletric energy will be consumed? also find the amount of electric bill if the rate of electricity consumption is rs.8.00 per unit

A 890 W radiant heater is constructed to operate at 115 V. (a) What is the current in the heater when the unit is operating? (b) What is the resistance of the heating coil? (c) How much thermal energy is produced in 5.00 h?

An electric bulb is rated at 200 V-100 W . What is its resistance ? Five such bulbs burn for four hours. What is the electrical energy consumed ? Calculate the cost if the rate is 50 paise per unit.

How much electrical energy in kilowatt hour is connected to operating ten 5 watt bulbs for 10 hour per day in a mouth (30 days)