Question

A linear, bilateral, electrical network produces 2A current through a load when the network was energized by a 20V source. If the network is energized by 40V source, the current through the load will be

• A. 8 A
• B. 6 A
• C. 4 A
• D. 2 A

Hint:

Linear networks follow the principle of superposition, and the current varies directly with the applied voltage.

Answer 1

The Correct Option is C

In a linear network, the current is directly proportional to the voltage. If a 20V source produces a 2A current, then a 40V source, which is double the previous voltage, will produce double the current, i.e. 4A.