A sine wave of 15 kHz is changing at a faster rate than a sine wave with a frequency of
A. 25 kHz
B. 12 kHz
C. 18 kHz
D. 1.3 MHz
Answer: Option B
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Related Questions on Alternating Current and Voltage
To produce an 800 Hz sine wave, a four-pole generator must be operated at
A. 200 rps
B. 400 rps
C. 800 rps
D. 1,600 rps
A. Wave A leads wave B by 15°
B. Wave A lags wave B by 15°
C. Wave A leads wave B by 105°
D. Wave A lags wave B by 105°
Higher frequency represents changing at a faster rate.
So we have to find the frequency which is less than 15kHz.
As we see options 25kHz,18kHz,1.3MHz are greater than 15kHz
So the frequency which is less than 15kHz is 12kHz
because of less frequency it undergoes less change compared to 15kHz wave