⚡Electrical Engineering MCQs
Electrical Engineering MCQs
499 MCQs351
In the initial stages of a multistage amplifier, we use______________?
ARC coupling
BTransformer coupling
CDirect coupling
DNone of the above
352
A gain of 1,000,000 times in power is expressed by_____________?
A30 db
B60 db
C120 db
D600 db
353
In transistor amplifiers, we use_____________transformer for impedance matching?
AStep up
BStep down
CSame turn ratio None of the above
354
If a three-stage amplifier has individual stage gains of 10 db, 5 db and 12 db, then total gain in db is____________?
A600 db
B24 db
C14 db
D27 db
355
Transformer coupling is generally employed when load resistance is______________?
ALarge
BVery large
CSmall
DNone of the above
356
_____________coupling provides the maximum voltage gain?
ARC
BTransformer
CDirect
DImpedance
357
In RC coupling, the value of coupling capacitor is about_______________?
A100 pF
B0.1 µF
C0.01 µF
D10 µF
358
The positive (+) and negative (-) ends of the battery are called ___________?
Acircuit diagram
Bbattery knobs
Cbattery terminals
Dbattery sides
359
When a Wheatstone bridge is in a balanced condition, the center voltmeter in the bridge will read_____________?
Atwice the source voltage
Bhalf the source voltage
Czero volts
Dthe same as the source voltage
360
In a series–parallel circuit, individual component power dissipation are calculated using_____________?
Aindividual component parameters
Ba percent of the total power depending on resistor ratios
Ctotal current squared multiplied by the resistor values
Da percent of the voltage division ratio squared