Question

In a two terminals network the open circuit voltage measured at the given terminals is 110 V and short circuit currents at the same terminals 10 A. If a load of 50 Ω resistance is connected at the terminals, load current is ___________

(a) 1.8 A

(b) 1.25 A

(c) 6 A

(d) 6.25 A

Answer 1

Right answer is (a) 1.8 A

The best I can explain: RTH = \(\frac{110}{10}\) = 11 Ω

So, I = \(\frac{110}{50+11}\) = 1.8 A.