A bulb of 100 watt and a heater of 1500 watt are used 3 hours daily in a room . What will be the reading of meter box after 1 week , if initial reading is 210?
An electric heater draws a current of 10 A from 220 volt supply. What is the cost of using heater for 5 hours every day for a month if 1 unit cost is Rs. 9 ?
A radio set of 15 watt runs 8 hours daily. How much energy is consumed in a month ?
In a house there are 3 bulbs of power 60 watt glow for 3 hours every day, a TV of power 150 watt runs 6 hours daily and refrigerator of power 330 watt operates 1 hour everyday. Find the total power consumption in one month. If 1 unit costs Rs. 9 . Total cost of electricity in one month?
Find out the total voltage in a circuit where, R = 10 ohm, I = 220A
A circuit with 220 V is supplied with a fuse of 5 A. how many bulb of 60 W can be safely used in the circuit.
What is the amount of current needed for a lamp of 100 watt connected to a source of 220 V.
Express the relation between the number of turns in primary and secondary coil with input output voltage.
Which one of the following converts kinetic energy into electrical energy.
What kind of transformer is a device having 750 turns in both primary and secondary coils.
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