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JEE Main 2024 (27 Jan, Shift 2) · Kirchhoff's Laws & Measuring Instruments

Kirchhoff's Laws & Measuring Instruments question from JEE Main 2024 (27 Jan, Shift 2)

Q61JEE Main 2024 · 27 JAN · SHIFT 2Medium

Kirchhoff's Laws & Measuring Instruments

Three voltmeters, all having different internal resistances are joined as shown in figure. When some potential difference is applied across AA and BB, their readings are V1,V2V_1, V_2 and V3V_3. Choose the correct option.

Figure

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Answer: (c)

  1. V1V_1 and V2V_2 are in series, and that pair is in parallel with V3V_3 across A and B.
  2. Series: VAB=V1+V2V_{AB} = V_1 + V_2. Parallel: VAB=V3V_{AB} = V_3.
  3. So the answer is (c) V1+V2=V3V_1 + V_2 = V_3.
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