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संबंधित प्रश्न
Define kilowatt-hour.
State and define the household unit of electricity.
1Kwh =`( 1 "volt "xx 1 am pere xx.............)/1000`
A simple electric circuit has a 30 V battery and a resistor of 60 Ω. What will be the current in the circuit? The resistance of the connecting wires is negligible.
Fig . shows the essent ial features of a battery operated bell. The hammer strikes the gong when the swi tch is closed . State and explain the effect of using the following material successively to form the core.
(a) Plastic
(b) Steel
(c) Copper
Household wiring for lamp connections can either be done in parallel or in series.Which one would you prefer? Give a reason for your answer.
State two advantages of filling an inert gas in an evacuated electric filament lamp.
A bulb is connected to a battery of e.m.f. 6V and internal resistance 2Ω A steady current of 0.5A flows through the bulb. Calculate the total energy supplied by the battery in 10 minutes.
1 mV is equal to:
Two heaters A and B have power rating of 1 kW and 2 kW, respectively. Those two are first connected in series and then in parallel to a fixed power source. The ratio of power outputs for these two cases is ______
