Subject Repository
Electrical Engineering Mcqs
Showing 161 – 180 of 3,699 verified multiple choice questions with answers and explanations.
Q161NTS / FPSC / PPSC
In an RC coupling scheme, the coupling capacitor CC must be large enough______________?
Q162NTS / FPSC / PPSC
When a multistage amplifier is to amplify d.c. signal, then one must use_____________coupling?
Q163NTS / FPSC / PPSC
In practice, voltage gain is expressed______________?
Q164NTS / FPSC / PPSC
The final stage of a multistage amplifier uses______________?
Q165NTS / FPSC / PPSC
RC coupling is not used to amplify extremely low frequencies because____________?
Q166NTS / FPSC / PPSC
1 db corresponds to_____________change in voltage or current level?
Q167NTS / FPSC / PPSC
The total gain of a multistage amplifier is less than the product of the gains of individual stages due to____________?
Q168NTS / FPSC / PPSC
A current amplification of 2000 is a gain of_________________?
Q169NTS / FPSC / PPSC
The purpose of RC or transformer coupling is to_____________?
Q170NTS / FPSC / PPSC
The value of emitter capacitor CE in a multistage amplifier is about____________?
Q171NTS / FPSC / PPSC
RC coupling is generally confined to low power applications because of____________?
Q172NTS / FPSC / PPSC
An amplifier receives 0.1 W of input signal and delivers 15 W of signal power. What is the power gain in db?
Q173NTS / FPSC / PPSC
The gain of an amplifier is expressed in db because_____________?
Q174NTS / FPSC / PPSC
The frequency response of transformer coupling is___________?
Q175NTS / FPSC / PPSC
1 db corresponds to_____________change in power level?
Q176NTS / FPSC / PPSC
The lower and upper cut off frequencies are also called_____________frequencies?
Q178NTS / FPSC / PPSC
Transformer coupling provides high efficiency because___________?
Q179NTS / FPSC / PPSC