In case the conditions for maximum power for a D.C. motor are established, the efficiency of the motor will be
A). 100%
B). Around 90%
C). Anywhere between 75% and 90%
D). Less than 50%
1. A closed switch has a resistance of
3. VSB modulation is preferred in TV because
4. The structure sensitive property of a super conductor is
5. Lenz’s law is a consequence of the law of conservation of
6. For measurement of inductance having high value, we should use
7. For which of the following ratings of the transformer differential protection is recommended ?
8. If it takes 400 ms to use 12,000 J of energy, the power is