1.

Assertion (A): In imperfect capacitors, the current does not lead the applied ac voltage by 90 .

Reason (R): When subjected to ac fields, the dielectric constant can be expressed as 'r - j "r.

A. Both A and R are true and R is correct explanation of A
B. Both A and R are true but R is not correct explanation of A
C. A is true but R is false
D. A is false but R is true
Answer» B. Both A and R are true but R is not correct explanation of A


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