Q:

A circuit consists of an excitation voltage VS, a resistor network and a resistor R. For different values of R, the values of V and I are as given, R = ?, V = 5 volt; R = 0, I = 2.5 A; when R = 3 ?, the value of V is __________

A) 1 V B) 2 V
C) 3 V D) 5 V
 

View Answer Explanation

50