Q1: Which transformer turns ratio is needed to match two 16-ohm parallel devices to an output of 22.2 ohms?

A 0.72:1

B 1.38:1

C 1.67:1

D 0.60:1

ANS:D - 0.60:1

Formula of relation between the primary and secondary:

Since the primary (Zp) has two 16-ohm parallel it would result to 8-ohms in total (Zp = 8ohms).

Substituting through trial and error given by choices:

8 = 0.60 * 0.60 * 22.2.
8 = 7.992.

img not found

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.