Subject Repository
Electrical Engineering Mcqs
Showing 1221 – 1240 of 3,699 verified multiple choice questions with answers and explanations.
Q1221NTS / FPSC / PPSC
In a transmitter ____________oscillator is used?
Q1222NTS / FPSC / PPSC
In an AM wave useful power is carrier by ______________?
Q1223NTS / FPSC / PPSC
In an AM wave, the majority of the power is in _____________?
Q1224NTS / FPSC / PPSC
If modulation is 100% then signal amplitude is ____________arrier amplitude?
Q1225NTS / FPSC / PPSC
In amplitude modulation, the _____________of carrier is varied according to the strength of the signal?
Q1226NTS / FPSC / PPSC
In pakistan, ______________ modulation is used for radio transmission?
Q1228NTS / FPSC / PPSC
In amplitude modulation, bandwidth is ____________ the audio signal frequency?
Q1229NTS / FPSC / PPSC
At 100% modulation, the power in each sideband is _____________ of that of carrier?
Q1230NTS / FPSC / PPSC
Overmodulation (amplitude) occurs when signal amplitude is _____________ carrier amplitude?
Q1233NTS / FPSC / PPSC
The encapsulation of transistor is necessary for__________?
Q1234NTS / FPSC / PPSC
The cascade amplifier is a multistage configuration of__________?
Q1235NTS / FPSC / PPSC
Three identical amplifiers with each one having a voltage gain of 50,input resistance of 1KΩ & output resistance of 250 ,are cascaded.The open circuit voltage gain of combined amplifier is_________?
Q1237NTS / FPSC / PPSC
An npn BJT has gm=38mA/v, cµ =10¯14 F, cπ =10¯13F and DC current gain β0=90.For this transistor fT & fβ are________?
Q1238NTS / FPSC / PPSC
The MOSFET switch in its on-state may be considered equivalent to_____________?
Q1239NTS / FPSC / PPSC