$$\text { Figure } 14

Question

$$\text { Figure } 14 < 1$$
-In Figure 14-1, the primary to secondary turns ratio is 1:3 and the secondary current equals 120 mA.What is the primary current?
A)180 mA 
B)40 mA 
C)360 mA 
D)cannot compute because theVoltage is not given

Quizplus · Accepted Answer

According to the transformer turns ratio equation, primary current equals (secondary current) x (turns ratio). Therefore, the primary current is (120 mA) x (1/3) = 40 mA x 3 = 360 mA. Voltage is not needed to solve for primary current in this case.

Figure 14<1\text { Figure } 14 < 1 Figure 14<1 -In Figure 14-1, the Primary to Secondary Turns Ratio Is

$\text { Figure } 14 < 1$ -In Figure 14-1, the Primary to Secondary Turns Ratio Is