How many kWh are consumed by an A.C. drawing 10 A current a 200 V for 2 hours daily in month of September?

An electic room heater is rated at 2 kW. Calculate the cost of using it for 2 hours daily for the month of september, if each unit costs Rs. 4.00

How many electrons make 10C of charge?

A transformer has 200 windings in the primary and 400 windings in the secondary. The primary is connected to an a.c. supply of 110 V and a current of 10 A flows in it The voltage across the secondary and the current in its respectively are

How many coulombs are provided by a current 0.010 mA in the calculator battery that can operate for 1000 hours?

The current flowing in a coil 3 A and the power consumed is 108 W. If the a.c. source is of 120 V-50 Hz, the resistance in the circuit is

How many gram equivalents of H2SO4 are present in 200 ml of N/10 H2SO4 solution ?

How many moles of mercury will be produced by electrolysing 1.0 M Hg (NO_(3))_(2) solution with a current of 2.00 A for 3 hours ?

An electric lamp marked 220 V d.c. consumes a current 10A. It is connected to a 250 V - 50 Hz a.c. mains through a choke. Calculate the inductance of the choke required.

How can a voltmeter of resistance 200 ohm and measuring 10 V be used to measure a current of 5 A?

How many numbers between 10 and 200 are exactly divisible by 7 ?