A voltage source having an open-circuit voltage of 100 V and ___

A voltage source having an open-circuit voltage of 100 V and internal resistance of 50 ω is equivalent to a current source

A. 2 A in parallel with 50 ω.
B. 2 A with 50 ω in series
C. 0.5 A in parallel with 50 ω
D. A in parallel with 100 ω

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Answer: A

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