Question

Which of the following materials does not obey ohm's law?
a)silver
b) copper
c) iron
d) silicon

Answer 1

Answer:

Explanation:

silicon ,as it is a semi conductor ohms law is invalid

Answer 2

Hey Dear,

◆ Answer -

(d) silicon

◆ Ohmic conductors -

• Conductors obeying Ohm's law are called ohmic conductors.
• They have linear relationship between current & voltage.
• They have constant resistance. For example, most metals.

◆ Non-ohmic conductors -

• Conductors which don't obey Ohm's law are called non-ohmic conductors.
• They have non-linear relationship between current & voltage.
• They have variable resistance. For example, semiconductors.

Hope this helps you. Thanks for understanding..