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संबंधित प्रश्न
An electric bulb is rated at 220 V, 100 W. What is its resistance?
An electric bulb is connected to a 220 V power supply line. If the bulb draws a current of 0.5 A, calculate the power of the bulb.
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.
A current of 2 A is passed through a coil of resistance 75Ω for 2 minutes. (a) How much heat energy is produced? (b) How much charge is passed through the resistance?
What are the two main systems of wiring commonly used in houses? Which of these systems mentioned by you is better and why?
A device is used to transform 12 V a.c. to 200 V a.c. What is the name of this device? Name the principle on which it works.
State relative advantages and disadvantages of ring system of wiring over the tree system.
How does earthing prevent electrical shock?
An Electric bulb is marked 100 W, 230 V. What current does it take?
If a heater coil rated lkW, 220 V is connected in series with an electric bulb of 100 W, 220 V and are supplied 200V, power consumed by the bulb in this circuit is ______.
