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The current-voltage graph of a device is...

The current-voltage graph of a device is shown in figure. The resistance is negative in region.

A

`AB`

B

`BC`

C

`ABC`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
a
`R=(DeltaV)/(Deltai)` is negative, when current decreases with increase of potential difference. This is exhibited by part `AB`.
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