In radiative coupling, the emitter radiation field_____________?

A. Decays as 1 / R, where R is the separation distance between the emitter and the receptor
B. Decays as R, where R is the separation distance between the emitter and the receptor
C. Decays as 1 / 2 R, where R is the separation distance between the emitter and the receptor
D. Decays as 2R, where R is the separation distance between the emitter and the receptor

Related Mcqs:

In BJT, the forward biased base emitter junction inject holes from base to emitter, the holes_______?
A. Do not contribute to the collector current
B. Result in net current flow component into the base
C. Contribute to the collector current
D. Only (a) and (b)
E. Only (b) and (c)
The latching current of GTO should be of order
A. 100 mA
B. 500 mA
C. 1 A
D. 2 A
Why resistor is used in Snubber circuit_________________ ?
A. To minimize the loss
B. To minimize the charging current
C. To minimize the discharging current
D. All of these
Maximum di / dt in a SCR is________?
A. Directly proportional to Vm of supply voltage
B. Inversely proportional to Vm of supply voltage
C. Inversely proportional to L in the circuit
D. Both A and C
IGBT stands for___________?
A. Insulated gate bipolar transistor
B. Insulated gate bidirectional transistor
C. Inductive gate bipolar transistor
D. Inductive gate bidirectional transistor
DIAC are specifically designed to trigger______________?
A. TRIAC
B. SCR
C. GTO
D. Only (a) and (b)
In a three phase converter, the number of notches per cycle is____________?
A. One
B. Three
C. Six
D. Nine
Due to non sinusoidal waveform of the input current, the power factor of the rectifier is____________?
A. Negatively affected by firing angle
B. Negatively affected by distortion of the input current
C. Positively affected by both firing angle and distortion of the input current
D. Both (a) and (b)
A carrier based PWM technique in CSI is composed of____________?
A. A switching pulse generator and a shorting pulse generator
B. A shorting pulse distributor
C. A switching and shorting pulse combination
D. All of these
AC power in a load can be controlled by using_____________?
A. two SCR’s in parallel opposition
B. two SCR’s in series
C. three SCR’s in series
D. four SCR’s in series