A trivalent impurity has______________valence electrons?
A trivalent impurity has______________valence electrons?
A. 4
B. 5
C. 6
D. 3
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The output stage of a multistage amplifier usually employs _________________?
The output stage of a multistage amplifier usually employs _________________?A. Push-pull amplifier
B. Preamplifier
C. Class A power amplifier
D. None of the aboveIn practice, voltage gain is expressed______________?
In practice, voltage gain is expressed______________?A. In db
B. In volts
C. As a number
D. None of the above1 Coulomb = ___________ e.
1 Coulomb = ___________ e.A. 6×10-19
B. 6.25×1018
C. 1.6×1019
D. 6.25×10-18Inductor does not allow the sudden change of
Inductor does not allow the sudden change of
A. current
B. voltage
C. power
D. None of the aboveVoltage developed across an inductor is expressed bY
Sudden change of current means di will change at dt → 0 (dt tends to zero), so sudden change of current means infinite voltage. Therefore it is not possible.A transistor converts __________________?
A transistor converts __________________?A. c. power into a.c. power
B. c. power into d.c. power
C. high resistance into low resistance
D. none of the aboveTwo 3.3 kΩ resistors are in series and this series combination is in parallel with a 4.7 kΩ resistor. The voltage across one of the 3.3 kΩ resistors is 12 V. The voltage across the 4.7 kΩ resistor is_________?
Two 3.3 kΩ resistors are in series and this series combination is in parallel with a 4.7 kΩ resistor. The voltage across one of the 3.3 kΩ resistors is 12 V. The voltage across the 4.7 kΩ resistor is_________?A. 24 V
B. 12 V
C. 0 V
D. 6 V