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MHT CET 2023 (14 May, Shift 1) · Kirchhoff's Laws & Measuring Instruments

Kirchhoff's Laws & Measuring Instruments question from MHT CET 2023 (14 May, Shift 1)

Q75MHT CET 2023 · 14 MAY · SHIFT 1Easy

Kirchhoff's Laws & Measuring Instruments

Five current carrying conductors meet at point $\text{P}$ . What is the magnitude and direction of the current in conductor $\text{PQ}$ ?

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Answer: (b)

Junction rule at P: total current in = total current out.
In: $5 + 4 = 9\text{ A}$ ; out (excluding PQ): $3 + 5 = 8\text{ A}$ .
Remaining $9 - 8 = 1\text{ A}$ must leave through PQ.
So the answer is (b) 1 A from P to Q.

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