The relationship for the impedance matching ratio $\text { (RL/Rpri) }$ in a transformer is:
A) equal to the turns ratio $\left( N _ { \mathrm { Sec } } / \mathrm { N } _ { \text {pri } } \right)$
B) opposite to the turns ratio $\left( \mathrm { N } _ { \mathrm { sec } } / \mathrm { N } _ { \text {pri } } \right)$ squared.
C) equal to the turns ratio $\left( \mathrm { N } _ { \mathrm { Sec } } / \mathrm { N } _ { \mathrm { pri } } \right)$ squared.
D) opposite to the turns ratio $\left( \mathrm { N } _ { \mathrm { sec } } / \mathrm { N } _ { \mathrm { pri } } \right)$

Question

Quizplus · Accepted Answer

The impedance matching ratio, also known as the turns ratio, in a transformer is given by $\frac{R_{L}}{R_{pri}} = \frac{V_{sec}}{V_{pri}} = \left(\frac{N_{sec}}{N_{pri}}\right)^{2}$ for an ideal transformer. Thus, the impedance matching ratio is equal to the turns ratio squared.

The Relationship for the Impedance Matching Ratio (RL/Rpri) \text { (RL/Rpri) } (RL/Rpri)

The Relationship for the Impedance Matching Ratio $\text { (RL/Rpri) }$