Considering transformer as a magnetically coupled circuit, the voltage at the primary of the transformer is _________________

R1i1 – L1*di1/dt – M*di2/dt

Considering transformer as a magnetically coupled circuit, the voltag

1.	Considering transformer as a magnetically coupled circuit, the voltage at the primary of the transformer is _________________
A.	R1i1 + L1di1/dt – Mdi2/dt
B.	R1i1 + L1di1/dt + Mdi2/dt
C.	R1i1 – L1di1/dt + Mdi2/dt
D.	R1i1 – L1di1/dt – Mdi2/dt
Answer» B. R1i1 + L1di1/dt + Mdi2/dt