-See Figure 9-3. If R = 100 Ω, compute the current through the 50 Ω resistor. Use the delta-wye conversion method.
A) 21.5 mA, Left to Right
B) 31.8 mA, Right to Left
C) 21.5 mA, Right to Left
D) 31.8 mA, Left to Right

Question

-See Figure 9-3. If R = 100 Ω, compute the current through the 50 Ω resistor. Use the delta-wye conversion method.
A) 21.5 mA, Left to Right 
B) 31.8 mA, Right to Left 
C) 21.5 mA, Right to Left 
D) 31.8 mA, Left to Right

Quizplus · Accepted Answer

Using the delta-wye (Δ-Y) conversion method, the delta network can be converted into a wye (Y) network, simplifying the circuit analysis. After conversion, the total resistance in the circuit can be calculated, and then Ohm's Law (V = IR) can be applied to find the current through the 50 Ω resistor. The direction of the current (Right to Left) is determined by the polarity of the voltage source and the arrangement of resistors in the circuit.