3.While performing an experiment to study the dependence of current on the potential difference across two ends of the resistor, a student keeps the circuit closed for a long time to measure the current and potential difference. State how the resistance of the resistor will be affected?
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Answer:
While performing the experiment "to study the dependence of current flowing through a resistor on the potential difference across its ends" if a student keeps the circuit 'ON' for a long time to measure the current and voltage, the (A) 1 ammeters zero erro
(B) potential difference of the cell will change
(C) voltmeter will start giving wrong readings
(D) resistor will get heated upto change in the values of its resistance✔✔✔✔✔
Answer:-
This will result in increase in the resistance of the resistor.
Explanation:-
Joule's Heating Law:-