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JEE PHYSICS MCQ: CURRENT ELECTRICITY
1
Easy
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Analyzing
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Statement-1: When a wire is stretched so that its diameter is halved then its resistance become 16 times.
Statement-2: Resistance of wire decrease with increase in length.
Statement-2: Resistance of wire decrease with increase in length.
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Correct option: C
Statement-1 is true, Statement-2 is false
Option C (Statement-1 is true, Statement-2 is false) is correct because when the diameter is halved, the resistance becomes 16 times, and resistance increases with length.
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Statement-1: If a resistor is connected to a battery the current decreases when the temperature increases.
Statement-2: For most of the resistors, resistance increases with increase in temperature. The reciprocal of resistance is Corresponding to the resistance , which is order of colour coding on carbon resistors? In a meter bridge, the gaps are closed by resistance 2 and 3 ohms. The value of shunt to be added to 3 ohm resistor to shift the balancing point by is
Statement-2: For most of the resistors, resistance increases with increase in temperature. The reciprocal of resistance is Corresponding to the resistance , which is order of colour coding on carbon resistors? In a meter bridge, the gaps are closed by resistance 2 and 3 ohms. The value of shunt to be added to 3 ohm resistor to shift the balancing point by is
