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संबंधित प्रश्न
Name two safety devices which are connected to the live wire of a household electric circuit
What is the SI unit of electric energy?
The commercial unit of energy is :
(a) watt
(b) watt-hour
(c) kilowatt-hour
(d) kilo-joule
Two lamps, one rated 220 V, 50 W and the other rated 220 V, 100 W, are connected in serieswith mains of 220 V. Explain why does the 50 W lamp consume more power
Two resistors A and B of 4 Ω and 6 Ω, respectively are connected in parallel. The combination is connected across a 6 volt battery of negligible resistance. Calculate the power dissipated in each resistor.
How does the heat produced by die passage of current in a metallic wire depend on the resistance of the wire.
Three 250 W heaters are connected in parallel to a 100 V supply, Calculate the resistance of each heater.
How can electric energy consumed by an electric appliance be calculated in kilowatt hour (kWh)?
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 resistance of the bulb.
A consumer uses 4 lamps of 60 watt, 2 lamps of 40 watt, and 2 lamps of 100 watt. All these are used for 6 hour daily. Find the total bill for 30 days when the rate of energy is 75 paise per unit and the meter rent is Rs. 1.
