For long distance transmission the transformer used is_____________?

Related Mcqs:

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

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

2. The output transformer used in a power amplifier is a _____________ transformer?

   A. 1:1 ratio B. Step-up C. Step-down D. None of the above...

3. Long distance transmission is easy for________________?

   A. D.C voltage B. A.C voltage C. Half A.C voltage D. Half D.C voltage...

4. Electric intensity at infinite distance from the point charge is_____________?

   A. zero B. infinite C. positive D. negative...

5. Power loss in actual transformer is due to_________________?

   A. Small output B. Eddy currents and magnetic hysterias C. Soft iron core D. Back emf...

6. The out put voltage of a transformer is 3 times the input voltage then turns ratio will be________________?

   A. 3-Jan B. 3 C. 1 D. 6...

7. Transformer works on the principle of________________?

   A. Lenzs law B. Faradays law C. Mutual induction D. Law of conservation of power...

8. Suri transmission is_________________?

   A. electrical-pneumatic B. mechanical-electrical C. hydro-mechanical D. hydro-pneumatic...

9. Transformer coupling can be used in______________amplifiers?

   A. Either power or voltage B. Only power C. Only voltage D. None of the above...

10. 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...