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MHT CET 2024 (16 May, Shift 1) · Kirchhoff's Laws & Measuring Instruments

Kirchhoff's Laws & Measuring Instruments question from MHT CET 2024 (16 May, Shift 1)

Q53MHT CET 2024 · 16 MAY · SHIFT 1Medium

Kirchhoff's Laws & Measuring Instruments

The potential difference $(V_A - V_B)$ between the points A and B in the given part of the circuit

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Answer: (d)

Walk from A to B along the current $I = 3\text{ A}$ ; drops are $IR$ in resistors and $E$ going from + to − of the cell.
$V_A - 3(4) - 5 - 3(2) = V_B$
$V_A - V_B = 12 + 5 + 6 = 23\text{ V}$
So the answer is (d) 23 V.

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