The purpose of a parallel circuit resonance is to magnify________?
The purpose of a parallel circuit resonance is to magnify________?
A. current
B. voltage
C. power
D. frequency
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What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value________ ?
What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value________ ?A. 0°
B. 45°
C. 90°
D. 180°The time constant of the capacitance circuit is defined as the time during which voltage________?
The time constant of the capacitance circuit is defined as the time during which voltage________?A. falls to 36.8% of its final steady value
B. rises to 38.6% of its final steady value
C. rises to 63.2% of its final steady value
D. none of the aboveThe power consumed in a circuit element will be least when the phase difference between the current and voltage is________?
The power consumed in a circuit element will be least when the phase difference between the current and voltage is________?A. 180″
B. 90°
C. 60°
D. 0°A parallel AC. circuit in resonance will__________?
A parallel AC. circuit in resonance will__________?A. have a high voltage developed across each inductive and capacitive section
B. have a high impedance
C. act like a resistor of low value
D. have current in each section equal to the line currentFor a sine wave with peak value Imax the r.m.s. value is_______?
For a sine wave with peak value Imax the r.m.s. value is_______?A. 0.5 Imax
B. 0.707
C. 0.9
D. 1.414 LmaxThe form factor is the ratio of_______?
The form factor is the ratio of_______?A. peak value to r.m.s. value
B. r.m.s. value to average value
C. average value to r.m.s. value
D. none of the above