When two pure sine waves of the same frequency and the same amplitude which are exactly 180� outof-phase are added togethera the result is
A wave with twice the amplitude
A wave with half the amplitude
Zero signal
A wave with twice the frequency
Correct Answer :
C. Zero signal
Related Questions
Which statement is true?
A series resonant circuit is of high impedance
A parallel resonant circuit is of low impedance
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A parallel resonant circuit is inductive if it operates at a frequency higher than the resonant frequency
Which component opposes voltage change?
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Capacitor
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Electrical power is directly proportional to both voltage squared and the resistance
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Refers specifically to steady state values of quantities in ac circuits which are complex numbers.
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Millman�s theorem
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Quadrature component only
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V(m)
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Greater electrical power saving
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Appliances have different current ratings
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Current
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