| ASSERTION: The algebraic sum of currents meeting at junction in a closed circuit is zero. |
| REASON: The Kirchhoff's first law does not obey law of conservation of charge. |
A) If both assertion and reason are true and reason is the correct explanation of assertion.
B) If both assertion and reason are true and reason is not the correct explanation of assertion.
C) If assertion is true but reason is false.
D) If both assertion and reason are false.
E) If assertion is false but reason is true.
Correct Answer: C
Solution :
Current is rate of flow charges and source generate charges like cells, generator etc. So point in a circuit (or junction of the circuit) cannot act as source or sink of charge. Therefore the number of charges entering at the junction is equal to number of charges coming out of the junction. Thus Kirchhoffs first law follows the law of conservation of charge.
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