The equivalent current-source representation for a voltage-source with open circuit voltage 12 V and internal resistance 3 ohms is
(A) a current-source of strength 4A in shunt with a resistance of 6Ω.
(B) a current –source of strength 4A in series with a resistance of 3Ω.
(C) a current-source of strength 4A in shunt with a resistance of 3 ohms.
(D) a current-source of strength 4A in shunt with a resistance of 36 ohms.
Explanatory answer :
A voltage source with series resistance can be transformed to a current source in parallel with a resistance
I = V/R = 12/3 = 4A and R = 3 (given)
Ans: a current-source of strength 4A in shunt with a resistance of 3 ohms.
(A) a current-source of strength 4A in shunt with a resistance of 6Ω.
(B) a current –source of strength 4A in series with a resistance of 3Ω.
(C) a current-source of strength 4A in shunt with a resistance of 3 ohms.
(D) a current-source of strength 4A in shunt with a resistance of 36 ohms.
Explanatory answer :
A voltage source with series resistance can be transformed to a current source in parallel with a resistance
I = V/R = 12/3 = 4A and R = 3 (given)
Ans: a current-source of strength 4A in shunt with a resistance of 3 ohms.
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