In Fig. 18-14b, calculate the primary current I_P if the secondary current I_S equals its rated value of 2 A.
Question 18.15: In Fig. 18-14b, calculate the primary current IP if the seco...
Rearrange Formula (18-8) and solve for the primary current I_P
\frac{I_S}{I_P}=\frac{V_P}{V_S} (18-8)
I_P=\frac{V_S}{V_P}\times I_S
=\frac{25.2V}{120V}\times 2A
=0.42 A or 420 mA
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