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PRADEEP-ELECTRICITY-(Mock Test)Sec -A
- Out of the two, a toaster of 1 kW and an electric heater of 2 kW, whic...
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- An electric iron has a rating of 750 W, 220 V. Calculate : (i) curre...
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- A wire 1.0 m long, 0.2 mm in diameter, has a resistance of 10 Omega. C...
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- What is an electric circuit ? Distinguish between an open and a closed...
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- Describe two conducting materials which are meant for specific uses. ...
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- Discuss electric energy and electric power. Give their units.
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- What do you mean by rating of an electric appliance ? Illustrate with ...
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- Two metallic wires A and B (of the same material) are connected in par...
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- Calculate the equivalent resistance between the points A and B in the ...
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- If three resistors having resistances 2 Omega, 3 Omega and 5 Omega are...
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- A piece of wire having resistance R is cut into four equal parts. (i...
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- A piece of wire of resistance R is redrawn by pulling it until its len...
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- In the circuit diagram given in (Fig. 3.57), calculate : (a) the cur...
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- If you were asked to think of electricity, many favourable and unfavou...
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- (a) Why a bird perched on a high voltage wire is not killed by the cur...
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- (a) Water boils in an electric kettle in 15 minutes after being swiche...
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- (a) What is meant by saying that the potential difference two points i...
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- (a) Name an instrument that measures electric current in a curcuit. De...
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- You are making a snack for you some friends to help0 you get ready for...
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- Three incandescent bulbs of 100 W each are connected in series in an e...
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