Assertion (A): Positive feedback is not used in any circuit.

Reason (R): Positive feedback leads to instability.

Assertion (A): The main use of Miller integrator is to generate ramp

Reason (R): An inverting amplifier can handle more than one input at the same time.

1. Ramp
2. Grill
3. Grey shades
4. Sine pulse
5. Picture line up generating equipment

1. A
2. Z2
3. X3Y
4. P12R
5. BX

Assertion (A): A photovoltaic cell is greatly affected by temperature.

Reason (R): Both germanium and silicon can be used for photovoltaic cells.

Assertion (A): When the performance of a stable second order system is improved by a PID controller, the system may become unstable.

Reason (R): PID controller increases the order of the system to 3.

1. 2 wattmeter
2. one wattmeter
3. 3 wattmeter