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JEE PHYSICS MCQ: CURRENT ELECTRICITY
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Medium
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Understanding
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Which one of the following statements concerning Ohm's law is true?
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Correct option: D
Ohm's law is true when the resistivity of a material is independent of the applied electric field
Option D is correct because Ohm's law holds only when the resistivity of the material remains constant, irrespective of the applied electric field.
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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