What will be the effect on potential gradient of a potentiometer on increasing:
(a) external resistance R
(b) length of wire ?
Answers
Answered by
0
i think a)external resistanceR
amansharma5:
i am not shure about this
The question is what would happen if the external resistance R was increased.
Answered by
1
As we know
V=IR
By keeping current I constant potential V is directly proportional to resistance R so
(a)
By increasing external resistance R potential gradient will increase with increase in resistance R
(b)
By increasing length of wire resistance R will increase so potential gradient will also increase.
V=IR
By keeping current I constant potential V is directly proportional to resistance R so
(a)
By increasing external resistance R potential gradient will increase with increase in resistance R
(b)
By increasing length of wire resistance R will increase so potential gradient will also increase.
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