A buffer amplifier is
A). A double-tuned amplifier
B). A cathode follower stage
C). A cathode follower stage
D). None of the above
3. The open circuit voltage of a compound generator is 250 V. At full load the terminal voltage
4. In a single bus-bar system there will be complete shut down when
5. Temperature coefficient of resistance is expressed in terms of
6. The voltage regulation in magnetic amplifier type voltage regulator is effected by
7. The metallic sheath may be made of lead or lead alloy or of aluminum.
8. An induction motor can run at synchronous speed when
9. When a negative voltage feedback is applied to an amplifier, its bandwidth___________