A 10 V DC regulator power supply has a regulation of 0.005 %. The output voltage will vary within an envelope of __________________ milivolt. 5. 2.5. 0.05. 0.5. TRUE ANSWER : ? YOUR ANSWER : ?
The input impedance of the base of an emitter follower is usually high. open. low. shorted to ground. TRUE ANSWER : ? YOUR ANSWER : ?
Leakage electric current in CE configuration is not present. normal. very high. very small. TRUE ANSWER : ? YOUR ANSWER : ?
Voltage Series (feedback also called series-shunt feedback) results in Decrease in input impedance & increase in output impedance Decreases in both input & output impedances Increase in both input & output impedances Increase in input impedance & decreases in output impedance TRUE ANSWER : ? YOUR ANSWER : ?
In a rectifier circuit, the diode converts alternating current to direct voltage. both (A) and (C) options are connect. alternating voltage to direct current. alternating voltage to direct voltage. TRUE ANSWER : ? YOUR ANSWER : ?
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 fT =1.33 x 1012 Hz & fβ = 1.47 x 1010 Hz fT =1.64 x 108 Hz & fβ = 1.47 x 1010 Hz fT =1.47 x 1010 Hz & fβ = 1.33 x 1012 Hz fT =1.47 x 1010 Hz & fβ = 1.64 x 108 Hz TRUE ANSWER : ? YOUR ANSWER : ?
The trapped energy of an inductive load can be feed back to the input supply through a diode known as Zener diode. Powe diode. Feed back diode. None of these. TRUE ANSWER : ? YOUR ANSWER : ?
In MOSFET devices the N-channel type is better the P-channel type in the following respects it has better drive capability. it is TTL compatible. it has better noise immunity. it is faster. TRUE ANSWER : ? YOUR ANSWER : ?
In CB configuration, the output V-I characteristics of a transistor are drawn by taking VCB versus IB for constant IE. VCB versus IB for constant IE. VCB versus IC for constant IE. VCE versus IC for constant IE. TRUE ANSWER : ? YOUR ANSWER : ?
For transistor action Je must be forward biased and Jc should be reverse biased. the base region must be very thin and lightly doped. all of these. the emitter should be heavily doped. TRUE ANSWER : ? YOUR ANSWER : ?