The subsequent problems deal with the circuit shown below. Assume that the diode is ideal (i.e., has a 0V forward bias voltage).
Using a KVL equation in loop B, which expression below is valid?
A. Vd = ?V2 + I2R2
B. Vd = V2 ? I2R2
C. Vd = V2 ? (I1 + I2)R2
D. Vd = ?V2 ? (I1 ? I2)R2
E. Vd = V2 + I2R2
Answer: C
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