Physics NEET test arrangement, earlier year questions, answers and solution #2

PHYSICS NEET TEST ARRANGEMENT:  

QUESTION:

A  40 microfarad capacitor is connected to a 200 V, 50 Hz ac supply. The rms value of current in the supply is nearly,

                         A.        1.7   A

                         B.        2.05 A

                         C.        2.5   A

                         D.        25.1 A                                         

 ANSWER :

                                                                                                                                     ANSWER - C

SOLUTION:

CAPACITIVE REACTANCE:

Capacitive reactance of a capacitor is the effective resistance offered by the capacitor to the flow of current through it.

RMS VALUE OF THE CURRENT: