MCQ
For small currents, ‘X’ obeys Ohm’s law. But when large currents are passed through the same conductor, it deviates from ohmic behaviour. Identify X.
- AMetallic conductor.
- BGallium arsenide.
- CThyristor.
- Dp-n junction diode.
✓
Answer
- Metallic conductor.
Explanation:
‘X’ is a metallic conductor. For small currents, it obeys Ohms’s law and its V-I graph is a straight line. But when large currents are passed through the same conductor, it gets heated up and its resistance increases. It no longer obeys Ohm’s law at higher currents.
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