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संबंधित प्रश्न
An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, the power consumed will be ______.
Name two safety devices which are connected to the live wire of a household electric circuit
An electric kettle connected to the 230 V mains supply draws a current of 10 A. Calculate:
(a) the power of the kettle.
(b) the energy transferred in 1 minute.
Name the S.I unit of electrical energy. How is it related to Wh?
Which material is the calorimeter commonly made of? Give one reason for using this material.
How does earthing prevent electrical shock?
An electric bulb is rated as 100W – 250V. What information does it convey? Calculate the resistance of its filament while glowing.
An immersion rod having resistance of 50 Ω is connected to 220V main supply. Assuming that all the energy generated goes to heat the water, calculate the time taken to heat 5 kg water from 30°C to 100°C.
A electric bulb is rate 220 V, 60 W. its electric cell resistance is nearly
