When the graph between current through and voltage across a device is a straight line, the device is referred to as _______________?
Correct answer: A. linear
- A. linear
- B. active
- C. nonlinear
- D. passive
Explanation
A straight-line voltage-current characteristic gives a constant ratio of voltage to current, so the device obeys Ohm’s law and is linear. Active and passive describe energy behaviour, not whether the characteristic is straight.
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