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Question 1 of 5
1. Question
4 pointsThe resistance of a bulb filament is 100 Ω at a temperature of 100°C. If its temperature coefficient of resistance be 0.005 per °C, its resistance will become 200 Ω at a temperature of [AIEEE 2006]
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Question 2 of 5
2. Question
4 pointsA material ‘B’ has twice the specific resistance of ‘A’. A circular wire made of ‘B’ has twice the diameter of a wire made of ‘A’. Then for the two wires to have the same resistance, the ratio lA / lB of their respective lengths must be [AIEEE 2006]
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Question 3 of 5
3. Question
4 pointsIn a potentiometer experiment, the balancing length with a cell is 240 cm. On shunting the cell with a resistance of 2 Ω, the balancing length becomes 120 cm. The internal resistance of the cell is [AIEEE 2005]
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Question 4 of 5
4. Question
4 pointsThe thermistors are usually made of: [AIEEE 2004]
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Question 5 of 5
5. Question
4 pointsA 220 volt, 1000 watt bulb is connected across a 110 volt mains supply. The power consumed will be [AIEEE 2003]
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