Alternating Current and Voltage

Q1:
The frequency of the sine wave in the given circuit equals ___.

A 4 kHz

B 800 Hz

C 20 kHz

D 250 Hz

ANS:C - 20 kHz

Time period for 1 cycle= 250/5 = 50micro sec

Frequency = 1/T = 1/(50 micro sec)

= 20 kHz

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