JEE Mains · Physics · STD 12 -Alternating current
- JEE Mains 2021
- Medium
- MCQ
Match List\(-I\) with List\(-II\) :
| List\(-I\) | List\(-II\) |
| \((a)\) \(\omega L\,>\,\frac{1}{\omega C}\) | \((i)\) Current is in phase with \(emf\) |
| \((b)\) \(\omega {L}=\frac{1}{\omega {C}}\) | \((ii)\) Current lags behind the applied \(emf\) |
| \((c)\) \(\omega {L}\, < \,\frac{1}{\omega {C}}\) | \((iii)\) Maximum current occurs |
| \((d)\) resonant frequency | \((iv)\) Current leads the \(emf\) |
Pick an option to check your answer.
Answer & Solution
Correct Answer
(C) \((a) - (ii) ; (b) - (i) ; (c) - (iv) ; (d) - (iii)\)
Step-by-step Solution
Detailed explanation
\((a)\) For \({x}_{{L}}\,>\,{x}_{{C}}\), voltage leads the current
\((ii)\)
\((b)\) For \(x_{L}=x_{C}\), voltage \(\&\) current are in same phase
\((i)\)
\((c)\) For \({x}_{{L}}\, < \,{x}_{{C}}\), current leads the voltage
\((iv)\)
\((d)\) For resonant frequency \({x}_{{L}}={x}_{{C}}\), current is maximum
\((iii)\)
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