If the instantaneous RF potentials on the two sides of a magnetron cavity are of opposite polarity, the operation is in the
A). mode
B). /2 mode
C). 2 mode
D). /4 mode
mode
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1. Is the reserved generating capacity available for service under emergency conditions which is not kept in operation but in working order,
2. The traveling speed of cranes varies from
3. A synchronous machine with low value of short-circuit ratio has
4. The heated parts of an electrical machine dissipate heat into their surroundings by which of the followingmodes of heat dissipation ?
5. The kWh meter can be classified as an ________ instrument
6. In India, electrification of railway track was done for the first time in which of the following years?
7. On which of the following factors does the sensitivity of a closed loop system to gain changes and load disturbances depend ?
8. When the frequency of the voltage applied to a series RL circuit is decreased, the impedance decreases
9. The pressure coil of a wattmeter should be connected on the supply side of the current coil when
10. Electroplating is done for:
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