The r.m.s. value and mean value is the same in the case of
A). Triangular wave
B). Sine wave
C). Square wave
D). Half wave rectified sine wave
1. 1 db corresponds to ___________ change in power level
2. The air resistance to the movement of the train is proportional to
3. In a lead-acid cell dilute sulfuric acid (electrolyte) approximately comprises the following
4. The product of apparent power and cosine of the phase angle between circuit voltage and current is
5. Permanent magnets are normally made of
6. An SCR is sometimes called ___________
7. Which of the following is a digital modulation technique?
8. If the operating point changes, the h parameters of transistor ___________
9. Microwave frequencies are normally regarded as those in the range of