Reverse saturation electric current in a silicon pn junction diode nearly doubles for very 5° rise in temperature. 6° rise in temperature. 2° rise in temperature. 10° rise in temperature. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is expected to have highest input impedance? MOSFET. JEFT amplifier. Common collector bipolar transistor CE bipolar transistor. TRUE ANSWER : ? YOUR ANSWER : ?
The emitter of the transistor is generally doped the heaviest because it has to dissipate maximum power. has to supply the charge carriers. must possess low resistance. is the first region of transistor. TRUE ANSWER : ? YOUR ANSWER : ?
The action of JFET in its equivalent circuit can best be represented as a Current controlled Current source Voltage controlled voltage source voltage controlled current source Current controlled voltage source 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 voltage. alternating voltage to direct current. TRUE ANSWER : ? YOUR ANSWER : ?
When the current gain increases from 50 to 300 in an emitter-biased circuit, the collector current decreases by a factor of 6. is zero. remains almost the same. increases by a factor of 6. TRUE ANSWER : ? YOUR ANSWER : ?
If the emitter resistor is open, the collector voltage is unchanged. low. unknown. high. TRUE ANSWER : ? YOUR ANSWER : ?
Three difference Q points are shown on a load line. The upper Q point represents the maximum current gain. intermediate current gain. cutoff point. minimum current gain. TRUE ANSWER : ? YOUR ANSWER : ?
The early effect in a bipolar junction transistor is caused by Fast turn-on Large collector-base reverse bias Large emitter-base forward bias Fast turn-off TRUE ANSWER : ? YOUR ANSWER : ?
Input impedance of MOSFET is more than that of FET but less than BJT. less than that of FET and BJT. less than of FET but more than BJT. more than that of FET and BJT. TRUE ANSWER : ? YOUR ANSWER : ?