Easy MCQ +4 / -1 PYQ · JEE Mains 2022

If L, C and R are the self inductance, capacitance and resistance respectively, which of the following does not have the dimension of time?

  1. A RC
  2. B ${L \over R}$
  3. C $\sqrt{LC}$
  4. D ${L \over C}$ Correct answer

Solution

<p>$U = {1 \over 2}L{i^2} = {1 \over 2}C{V^2}$</p> <p>So, $\left[ {{L \over C}} \right] = {{{V^2}} \over {{i^2}}} = {R^2}$ is not the dimension of time.</p>

About this question

Subject: Physics · Chapter: Alternating Current · Topic: AC Circuits: R, L, C

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