If voltage feedback (negative) is applied to an amplifier, its output impedance ___________
A). Remains the same
B). Is increased
C). Is decreased
D). None of the above
1. Local action in a battery is indicated by
2. The overall efficiency of steam locomotive is around
3. The radiation pattern of loop antenna is
4. Method which is commonly applied for unloading the coal for small power plant is
5. The roll-off rate of a basic RC or RL filter is 20 dB per decade.
7. Electric locomotives in India are manufactured at
8. The delay fuses are used for the protection of ________ .
9. In a D.C. machine stray loss is the sum of
10. Short circuit test on transformers is conducted to determine