Assertion (A): Power drain of CMOS increases with operating frequency

Reason (R): All unused CMOS inputs should be tied either to a fixed voltage level (0 or V_DD) or to another input.

Match the following:

1. The materials have negative magnetic susceptibility.
2. At very low temperature diamagnetic materials.

1. If IF is too high, poor selectivity and poor adjacent channel rejection could result
2. If IF is high, tracking difficulties increase
3. A very low IF makes selectivity too sharp
4. As IF is decreased, image frequency rejection becomes better

1. suitable for both ac and dc
2. free from hysteresis and eddy current errors
3. No waveform and frequency errors
4. it is essentially a voltmeter