Curioustab

Home » Electrical Engineering » Alternating Current and Voltage

Sine wave A has a positive-going zero crossing at 45°. Sine wave B has a positive-going zero crossing at 60°. Which of the following statements is true?

Wave A leads wave B by 15°.
Wave A lags wave B by 15°.
Wave A leads wave B by 105°.
Wave A lags wave B by 105°.

Correct Answer: Wave A leads wave B by 15°.

← Previous Question Next Question→

More Questions from Alternating Current and Voltage

A phasor represents
A pulse waveform has a high time of 8 ms and a pulse width of 32 ms. The duty cycle is
A sinusoidal current has an rms value of 14 mA. The peak-to-peak value is
The average half-cycle value of a sine wave with a 40 V peak is
To produce an 800 Hz sine wave, a four-pole generator must be operated at
If a sine wave goes through 10 cycles in 20 µs, the period is
A sine wave with an rms value of 12 V is riding on a dc level of 18 V. The maximum value of the resulting waveform is
One sine wave has a positive-going zero crossing at 15° and another sine wave has a positive-going zero crossing at 55°. The phase angle between the two waveforms is
A square wave has a period of 60 µs. The first odd harmonic is
The conductive loop on the rotor of a simple two-pole, single-phase generator rotates at a rate of 400 rps. The frequency of the induced output voltage is

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion