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MHT CET 2025 (23 Apr, Shift 1) · Pure R, L and C Circuits

Pure R, L and C Circuits question from MHT CET 2025 (23 Apr, Shift 1)

Q17MHT CET 2025 · 23 APR · SHIFT 1Easy

Pure R, L and C Circuits

An a. c. source is connected across a pure inductor. Which one of the following figures shows the correct phase relation between the current and e.m.f.?

Figure

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Answer: (b)

  1. In a pure inductor the current lags the emf by π2\frac{\pi}{2}.
  2. With anticlockwise rotation, iLi_L must be 90∘90^\circ clockwise from eLe_L.
  3. Figure B: eLe_L points right and iLi_L points down, so iLi_L lags by 90∘90^\circ.
  4. So the answer is (b), figure B.
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