- AA, B and C only
- BA and B only
- CA, B and D only
- DB, C and D only
View written solutionFree
Correct answer: C
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Given condition
The circuit is such that instantaneous current is zero when instantaneous voltage is maximum.
Let Then voltage is maximum when
At this instant, we need
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Check each circuit element
(A) Pure inductor
For a pure inductor, current lags voltage by : At , So, pure inductor satisfies the condition.
(B) Pure capacitor
For a pure capacitor, current leads voltage by : At , So, pure capacitor also satisfies the condition.
(C) Pure resistor
For a pure resistor, current and voltage are in phase: At , So, pure resistor does not satisfy the condition.
(D) Combination of inductor and capacitor
For a circuit containing only and , the phase difference can be depending on whether it behaves net inductive or net capacitive.
In such a case, current can be zero when voltage is maximum, just like in purely reactive circuits.
Hence, a combination of inductor and capacitor can satisfy the condition.
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Conclusion
Correct statements are: but not .
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Match with given options
Option listing and only is:
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Comparison with stored answer
Stored correct answer = C.
My derived answer also = C.
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