A. can dissipate considerable amount of power
B. can act as energy storage devices
C. connecting them in parallel in¬creases the total value
D. oppose sudden changes in voltage
Related Mcqs:
- Wire-wound resistors are unsuitable for use at high frequencies because they_______?
A. create more electrical noise
B. are likely to melt under excessive eddy current heat
C. consume more power
D. exhibit unwanted inductive and capacitive effects - For the same peak value which of the following wave will ‘have the highest r.m.s. value?
A. square wave
B. half wave rectified sine wave
C. triangular wave
D. sine wave - Power factor of the following circuit will be zero__________?
A. resistance
B. inductance
C. capacitance
D. both B. and C. - The square waveform of current has following relation between r.m.s. value and average value?
A. r.m.s. value is equal to average value
B. r.m.s. value of current is greater than average value
C. r.m.s. value of current is less than average value
D. none of the above - In each of the three coils of a three phase generator, an alternating voltage having an r.m.s. value of 220 V is induced. Which of the following values is indicated by the voltmeters ______?
A. 220 V
B. 220V3V
C. 220/V3 V
D. none of the above - Ohm is unit of all of the following except___________?
A. inductive reactance
B. capacitive reactance
C. resistance
D. capacitance - The phosphors for which of the following pair are 180° out of phase for VL, VC and VR______?
A. Vc and VR
B. VL and VR
C. Vc and VL
D. none of the above - Which of the following refers to a parallel circuit ?
A. The current through each element is same
B. The voltage across element is in proportion to it’s resistance value
C. The equivalent resistance is greater than any one of the resistors
D. The current through any one element is less than the source current - If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave_________ ?
A. 42.42 sin 3141
B. 60 sin 25 t
C. 30 sin 50 t
D. 84.84 sin 25 t - Which of the following circuit component opposes the change in the circuit voltage ?
A. Inductance
B. Capacitance
C. Conductance
D. Resistance
