1. A0 = 49
2. A0 = 25.5
3. A0 = 24.5
4. A0 = 51
A0 = 24.5
No Explanation available for this question
1. The gain bandwidth product with feedback is greater than gain-bandwidth product without feedback
2. The gain-bandwidth product with feedback is equal to gain bandwidth product without feedback.
3. The gain bandwidth product with feedback is less than gain bandwidth product without feedback
4. The gain bandwidth product with feedback is never equal to gain bandwidth product without feedback.
The gain-bandwidth product with feedback is equal to gain bandwidth product without feedback.
No Explanation available for this question
1. It occurs in active mode due to heating of the transistor
2. It occurs in saturation mode due to due to change in reverse collector saturation current due to rise in temperature
3. It occurs in active mode due to due to change in β which increases with temperature
4. It occurs in active mode due to change in reverse collector saturation current due to rise in temperature
It occurs in active mode due to change in reverse collector saturation current due to rise in temperature
No Explanation available for this question
1.
2.
3.
4.
No Explanation available for this question
1. This is not a Barkhausen criterion
2. Non-linearity of the circuit will dampen the oscillation
3. This will violate the law of consecration of energy
4. Variations of the circuit parameter value due to temperature, age etc. will make the gain either larger or smaller than unity.
Variations of the circuit parameter value due to temperature, age etc. will make the gain either larger or smaller than unity.
No Explanation available for this question
The condition to avoid thermal run away in a transistor is (where notation have their usual meaning)
1. VCE > VCC/2
2. ∂PC/∂Tj < ∂PD/∂Tj
3. ∂PC/∂Tj < 1/θ
4. Both b & c
Both b & c
No Explanation available for this question
1. Uncontrolled increase temperature due to positive feedback caused by self heating and increase in collector currents with increasing temperature
2. Reduction in thermal resistance with increasing temperature
3. Change in slope of the thermal load line with changing temperatures
4. Uncontrolled increase temperature due to avalanche multiplication
Uncontrolled increase temperature due to positive feedback caused by self heating and increase in collector currents with increasing temperature
No Explanation available for this question
1. 3/2 Sin(100)
2. 3 sin (100t)
3. 2 sin(100t)
4. 3 sin(100t)+1/2 a
3/2 Sin(100)
No Explanation available for this question
1. Allow AC & DC voltages to be applied to the transistor without affecting each other
2. Increases coupling between the input and output AC signals
3. Couple the base and collector currents of the transistor
4. Increase the DC voltage gain
Allow AC & DC voltages to be applied to the transistor without affecting each other
No Explanation available for this question
1.
2.
3.
4.
No Explanation available for this question