For highest power gain, one would use _________________configuration?
For highest power gain, one would use _________________configuration?
A. CC
B. CB
C. CE
D. none of the above
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Long distance transmission is easy for________________?
Long distance transmission is easy for________________?A. D.C voltage
B. A.C voltage
C. Half A.C voltage
D. Half D.C voltageElectric flux due to a point charge +q is______________?
Electric flux due to a point charge +q is______________?A. 1/4IIɛ q/r
B. q/ɛ0
C. 1/4IIɛ0. q/r2
D. 4IIɛ0At a certain frequency, the output voltage of a filter is 6 V and the input is 12 V. The voltage ratio in decibels is_____________?
At a certain frequency, the output voltage of a filter is 6 V and the input is 12 V. The voltage ratio in decibels is_____________?A. 6.02 dB
B. -6.02 dB
C. 12.04 dB
D. -12.04 dBThe characteristics of drive for crane hoisting and lowering are which of the following ?
The characteristics of drive for crane hoisting and lowering are which of the following ?A. Precise control
B. Smooth movement
C. Fast speed control
D. All of the above_______________method can bring the locomotive to dead stop?
_______________method can bring the locomotive to dead stop?A. Plugging braking
B. Rheostatic braking
C. Regenerative braking
D. None of the aboveFor electroplating we use_________________?
For electroplating we use_________________?A. A D.C source
B. an A.C source
C. any source
D. all of the above