Question

In the figure given below, the value of Resistance R by Thevenin Theorem is ___________

(a) 10

(b) 20

(c) 30

(d) 40

This question was posed to me by my school principal while I was bunking the class.

I need to ask this question from Thevenin Theorem Involving Dependent and Independent Sources in division Useful Theorems in Circuit Analysis of Network Theory

Answer 1

Correct answer is (b) 20

Easy explanation: \(\frac{V_P-100}{10} + \frac{V_P}{10}\) + 2 = 0

Or, 2VP – 100 + 20 = 0

∴ VP = 80/2 = 40V

∴ R = 20Ω.