Multiple Choice Questions

1. If the secondary winding of the ideal transformer shown in Figure 1 has 40 turns, the number of turns in the primary winding for maximum power transfer to the 2 Q resistor will be

  • (a) 20  (b) 40  (c) 80  (d) 160

images

Figure 1

2. If the rated voltage from the power lines is applied to the primary of a single-phase transformer which is operated on no-load, then

  • (a) both input voltage and current are sinusoidal
  • (b) both input voltage and current are non-sinusoidal
  • (c) input voltage is non-sinusoidal and current are sinusoidal
  • (d) input voltage is sinusoidal and current are non-sinusoidal

3. For the purpose of analysis, ...

Get Electrical Machines, 2nd Edition now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.