RC coupling is generally confined to low power applications because of____________?

Related Mcqs:

1. In an RC coupling scheme, the coupling capacitor CC must be large enough______________?

   A. To pass d.c. between the stages B. Not to attenuate the low frequencies C. To dissipate high power D. None of the above...

2. In RC coupling, the value of coupling capacitor is about_______________?

   A. 100 pF B. 0.1 µF C. 0.01 µF D. 10 µF...

3. The most costly coupling is _______________ coupling?

   A. RC B. Direct C. Impedance D. Transformer...

4. ________________ coupling is generally employed in power amplifiers?

   A. Transformer B. RC C. direct D. Impedance...

5. Power amplifiers generally use transformer coupling because transformer permits______________?

   A. Cooling of the circuit B. Impedance matching C. Distortionless output D. Good frequency response...

6. RC coupling is not used to amplify extremely low frequencies because____________?

   A. There is considerable power loss B. There is hum in the output C. Electrical size of coupling capacitor becomes very large D. None of the above...

7. Transformer coupling is generally employed when load resistance is______________?

   A. Large B. Very large C. Small D. None of the above...

8. RC coupling is used for_____________amplification?

   A. Voltage B. Current C. Power D. None of the above...

9. Transformer coupling provides high efficiency because___________?

   A. Collector voltage is stepped up B. resistance is low C. collector voltage is stepped down D. none of the above...

10. The purpose of RC or transformer coupling is to_____________?

    A. Block a.c. B. Separate bias of one stage from another C. Increase thermal stability None of the above...