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Networks Analysis and Synthesis - Engineering

Q1:

In the circuit shown in figure, for different values of R, the values of V and I are given. Other elements remaining the same. when R = ∞, V = 5 volt
  1. R = 0, I = 2.5 A
  2. R = 3 Ω, the value of V is given by

A 1 V

B 2 V

C 3 V

D 5 V

ANS:C - 3 V

When R = ∞, V = 5v, Voc = 5V circuit is open When R = 0, I = 2.5A Isc = 2.5 circuit short circuited Hence the voltage across 3 Ω is 3 volt.