A. 360°
B. 180°
C. 90°
D. 0°
A. both will reach their minimum values at the same instant
B. both will reach their maximum values at the same instant
C. when one wave reaches its maxi¬mum value, the other will reach its minimum value
D. none of the above
A. average voltage
B. r.m.s. voltage
C. peak voltage
D. none of the above
A heater is rated as 230 V, 10 kW, A.C. The value 230 V refers to__________? Read More »
A.C. Fundamentals, Circuits and Circuit Theory A. mean value
B. r.m.s. value
C. peak value
D. average value
The voltage of domestic supply is 220V. This figure represents__________? Read More »
A.C. Fundamentals, Circuits and Circuit Theory A. a sinusoid of the same frequency
B. a sinusoid of half the original frequency
C. a sinusoid of double the frequency
D. not a sinusoid
A. 2.5
B. 5
C. 10
D. 15
A. the same as frequency
B. time required to complete one cycle
C. expressed in amperes
D. none of the above
The period of a wave is___________? Read More »
A.C. Fundamentals, Circuits and Circuit Theory 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
The form factor is the ratio of_______? Read More »
A.C. Fundamentals, Circuits and Circuit Theory A. 100 n
B. 50 jt
C. 25 JT
D. 5 n
A sine wave has a frequency of 50 Hz. Its angular frequency is ________ radian/second. Read More »
A.C. Fundamentals, Circuits and Circuit Theory A. purely inductive circuit
B. R-L circuit
C. R-C circuit
D. R-L-C circuit
The double energy transient occur in the____________? Read More »
A.C. Fundamentals, Circuits and Circuit Theory