UJT has number of terminals | Power Electronics MCQ#24
UJT has: One Two Three Four Correct answer: 3. Three
UJT has: One Two Three Four Correct answer: 3. Three
Using Gate terminal the SCS can be: Turned off only Turned on only Both of these None of these Correct answer: 3. Both of these
Number of terminals on SCR are: One Two Three Four Correct answer: 3. Three
Diac and Triac are which type of devices: Unidirectional, Unidirectional Unidirectional, Bidirectional Bidirectional, Unidirectional Bidirectional, Bidirectional Correct answer: 4. Bidirectional, Bidirectional
Total number of semiconductor layers in thyristors: 1 2 3 4 Correct answer: 4. 4
The emitter current is always greater than: Base current Collector current Both of these None of these Correct answer: 3. Both of these
The forward-biased base-emitter junction of a silicon BJT has an approximate voltage of: 0.4 V 0.45 V 0.7 V 0 V Correct answer: 3. 0.7 V
The less is the reverse bias in varactor diode: The less is the capacitance The more the capacitance Capacitance is independent of bias Correct answer: 2. The more the capacitance
A varactor diode exhibits which type of capacitance: A constant inductance over a range of reverse voltages A variable capacitance that depends on reverse voltage A variable capacitance that depends on forward current A constant capacitance over a range of reverse voltages A variable resistance that depends on reverse voltage Correct answer: 2. A variable … Read more
If a transistor amplifier outputs 10 V rms for an input of 100 mV rms, the voltage gain is: 0.1 10 100 10000 Correct answer: 3. 100