Question

An alternating voltage E (in volts) = 200 √2 sin 100 t is
connected to one micro farad capacitor through an a.c.
ammeter. The reading of the ammeter shall be
(a) 100 mA (b) 20 mA (c) 40 mA (d) 80 mA

Answer 1

Explanation:

I think option A is the answer

Answer 2

Answer:

Answer : option (b)

explanation : equation of alternating voltage , E = 200√2sin(100t)

compare this equation with

so, volts

= 100 rad/s

now,

= 200√2/√2 = 200 volts .

given, capacitance of capacitor, C = 10^-6F

so, reactance of capacitor,

=

=10⁴

so, the reading of Ammeter ,

= 200/10⁴ A = 20 × 10^-3 A = 20mA

hence, option (b) is correct.

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