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The I-V characteristics of a resistor is...

The I-V characteristics of a resistor is observed to deviate from a straight line for higher value of current as shown in fin 5.17 why?

Text Solution

Verified by Experts

For higher value of current,
the resistor gets heated and
consequently its resistance increases. The resistor becomes
non-ohmic due to which the I -V charcteristic deviates for
staright line thereby showing leser current for the same
voltage.
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