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JEE PHYSICS MCQ: CURRENT ELECTRICITY
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A resistor develops 500 J of thermal energy in 20 S, when a current of 1.5A is passed through it. If the current is increased from 1.5A to 3A, what will be the energy developed in 20S?
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Correct option: D
2000 J
Option D (2000 J) is correct because the energy developed is proportional to the square of the current.
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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
