Electronics Set 1 - ilmijazeera

Results

#1. The width of depletion region of a diode

Increases under forward bias

Is independent of applied voltage

Increases under reverse bias

None of these

#2. A LED emits lights only

Forward biased

Reverse Biased

Un biased

None of these

#3. for typical transistor as an amplifier

Vout/Vin = β Rc/Rie

Vout/Vin = β

Vout/Vin = β Ric /Rc

Vout/Vin = β Rie /Rie

#4. NAND gate is a combination

AND gate and NOT gate

AND gate and OR gate

OR gate and NOT gate

NOT gate and NOT gate

#5. The reverse or leakage current of the diode is of the order of

Microampere

Milli-ampere

Both

None of these

#6. Temperature, pressure etc. are converted into electronic information’s by devices called

LEDs

Sensors

Vacuum tubes

None

#7. Base of the transistor is very thin of the order of

10 ^ - 2 * m

10 ^ - 1 * m

10 ^ - 6 * m

10 ^ - 11 * m

#8. How many diodes are used for the full wave bridge rectifier circuit is

Two

Three

Four

None of these

#9. The resistance between (+) and (-) of ideal Op- Amp is

High

Low

Infinity

Moderate

#10. In a half-wave rectifier the diode conducts during

Both halves of the input cycle

A portion of the positive half of the input cycle

A portion of the negative half of the input cycle

One half of the input cycle

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Results

#1. The width of depletion region of a diode

#2. A LED emits lights only

#3. for typical transistor as an amplifier

#4. NAND gate is a combination

#5. The reverse or leakage current of the diode is of the order of

#6. Temperature, pressure etc. are converted into electronic information’s by devices called

#7. Base of the transistor is very thin of the order of

#8. How many diodes are used for the full wave bridge rectifier circuit is

#9. The resistance between (+) and (-) of ideal Op- Amp is

#10. In a half-wave rectifier the diode conducts during