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AIIMS 2011
Exam
AIIMS
Year
2011
Subject
Physics
Chapter
Alternating Current

AIIMS 2011 · Physics · Alternating Current

In series L C R circuit, the phase difference between applied...

In series LCRL C R circuit, the phase difference between applied voltage and current is

Options

  1. Apositive when XL>XCX_L>X_C
  2. Bpositive when XC>XLX_C>X_L
  3. C90∘90^{\circ}
  4. D0∘0^{\circ}

Correct answer

A. positive when XL>XCX_L>X_C

Step-by-step solution

In series LCR circuit, the phase angle ϕ\phi is given by \tan \phi=XL−XCR\frac{X_L-X_C}{R}When XL>XCX_L \gt X_C, tan ϕ\phi is positive. Therefore the phase difference is positive.
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