Current Electri...

How much energy in kilowatt hour is consumed in operating ten 50 watt bulbs for 10 hours per day in a month (30 days)

Two electric lamps of 40 watt each are connected in parallel. The power consumed by the combination will be

A 25 watt, 220 volt bulb and a 100 watt, 220 volt bulb are connected in series across a 220 volt lines. Which electric bulb will glow more brightly?

A resistor R₁ dissipates power P when connected to a certain generator. If the resistor R₂ is put in series with R₁, the power dissipated by R₁

An electric fan and a heater are marked as 100 watt, 220 volt and 1000 watt, 220 volt respectively. The resistance of the heater is

According to Joule\'s law, if the potential difference across a conductor having a material of specific resistance remains constant, then the heat produced in the conductor is directly proportional to

Two bulbs X and Y having same voltage rating and of power 40 watt and 60 watt respectively are connected in series across a potential difference of 300 volt, then

Two identical heaters rated 220 volt, 1000 watt are placed in series with each other across 220 volt lines. If resistance does not change with temperature, then the combined power is

A railway compartment is lit up by thirteen lamps each taking 2.1 amp at 15 volts. The heat generated per second in each lamp will be

A 5.0 amp current is setup in an external circuit by a 6.0 volt storage battery for 6.0 minutes. The chemical energy of the battery is reduced by