A traveling-wave tube (TWT) amplifies by virtue of
A). The absorption of energy by the signal from an electron stream
B). The effect of an external magnetic field
C). The energy contained the cavity resonators
D). The energy liberated form the collector
The absorption of energy by the signal from an electron stream
1. The operating modes of 8255 A are called
2. Voltage Series (feedback also called series-shunt feedback) results in
4. are the conductors, which connect the consumer's terminals to the distribution
6. Addition of resistors in parallel increases total resistance and decreases total current.
7. The gain of an amplifier is expressed in db because ___________
8. The formula __________ determines the number of electrons that can be accommodated in any level.
9. Is not a final control element.
10. Multiple inlet system of air cooling of turbo-alternators can be used for machines of rating upto