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NEET 2020 (Phase 2) · Kirchhoff's Laws & Measuring Instruments

Kirchhoff's Laws & Measuring Instruments question from NEET 2020 (Phase 2)

Q132NEET 2020 · PHASE 2Easy

Kirchhoff's Laws & Measuring Instruments

For the circuit given below, the Kirchoff's loop rule for the loop BCDEBBCDEB is given by the equation

Figure

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Answer: (c)

  1. Go round B→C→D→E→B and add potential changes.
  2. B→C along i2i_2 through R2R_2: −i2R2-i_2R_2; C→D through E2E_2 (+ to −): −E2-E_2.
  3. D→E through E3E_3 (− to +): +E3+E_3; E→B against i3i_3 through R1R_1: +i3R1+i_3R_1.
  4. −i2R2−E2+E3+i3R1=0-i_2R_2 - E_2 + E_3 + i_3R_1 = 0, i.e. i2R2+E2−E3−i3R1=0i_2R_2 + E_2 - E_3 - i_3R_1 = 0. So the answer is (c).
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