If temperature increases then conductivity of a semiconductor is ................... Decreases Constant None of these Increases TRUE ANSWER : ? YOUR ANSWER : ?
An opamp has a voltage gain of 200,000. If the output voltage is 1 V, the input voltage is 1 V. 2 micro V. 10 V. 5 5 micro V. TRUE ANSWER : ? YOUR ANSWER : ?
When a transistor is connected in common emitter mode, it with have Low input resistance as well as output resistance Negligible input resistance and high output resistance High input resistance and low output resistance Medium input resistance and high output resistance TRUE ANSWER : ? YOUR ANSWER : ?
For transistor action all of these. the emitter should be heavily doped. Je must be forward biased and Jc should be reverse biased. the base region must be very thin and lightly doped. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is a semiconductors material ? GaAs Si Ge All the above TRUE ANSWER : ? YOUR ANSWER : ?
The main factor which makes a MOSFET likely to breakdown during the normal handling high leakage current. very low gate capacitance. high input resistance. both (A) and (C). TRUE ANSWER : ? YOUR ANSWER : ?
Conventional biasing of a BJT has EB reversed biased and CB forward biased. EB forward biased and CB reversed biased. EB reversed biased and CB reversed biased. EB forward biased and CB forward biased. TRUE ANSWER : ? YOUR ANSWER : ?
A forward potential of 10 V is applied to a silicon diode. A resistance of 1KΩ is also in series with the diode. The electric current is 10 mA. 9.3 mA. 0.7 mA. 0. TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following cannot actually move? All the above Electrons Ions Holes TRUE ANSWER : ? YOUR ANSWER : ?
Germanium has molecular bond. ionic bond. covalent bond. metallic bond. TRUE ANSWER : ? YOUR ANSWER : ?