Exam Question
(a) State Ohm's Law (3)
(b) State the limitations of Ohm's Law (3)
(c) If the resistance of a circuit is increased to 3 times and the applied Voltage is halved, what will happen to the circuit current? (10)
Class 4 (4th Engineer)
MET
📅 Sep 2023
Reference Answer
### (a) Ohm's Law (3 Marks)
Ohm's Law provides the fundamental relationship between voltage, current, and resistance in a linear electrical circuit. It states that:
* The current (I) flowing through a conductor between two points is **directly proportional** to the voltage (V) across the two points.
* The current (I) is **inversely proportional** to the resistance (R) of the conductor.
Ohm's Law provides the fundamental relationship between voltage, current, and resistance in a linear electrical circuit. It states that:
* The current (I) flowing through a conductor between two points is **directly proportional** to the voltage (V) across the two points.
* The current (I) is **inversely proportional** to the resistance (R) of the conductor.
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