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In an ac circuit, the instantaneous current is zero, when the instantaneous voltage is maximum. In this case, the source may be connected to : A. pure inductor. B. pure capacitor. C. pure resistor. D. combination of an inductor and capacitor. Choose the correct answer from the options given below :

1. A, B and C only
2. B, C and D only
3. A and B only
4. A, B and D only

Correct answer: A, B and D only

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