Question

The characteristics shown by an element in the I-V curve is a straight line passing through the origin with a positive slope. The nature of the element is _______

(a) Non-linear, Bilateral

(b) Linear, Unilateral

(c) Linear, Bilateral

(d) Non-linear, Unilateral

The question was posed to me during a job interview.

The above asked question is from Electric Motors in section Braking of Electric Motors of Electric Drives

Answer 1

Right choice is (c) Linear, Bilateral

The best I can explain: The nature of the element is linear and bilateral. It follows the principle of homogeneity and law of additivity. For bilateral nature, it should be symmetrical in the first and third quadrant.