NEET Class neet Answered
If the current I through a cell having a driving force d and an internal resistance r is varied and its terminal voltage V is noted each time and a graph V ? I is drawn, then the slope of this graph and the intercept on the V axis are and respectively.
Asked by riyachabhadiya5 | 03 Jan, 2024, 14:49: PM
Expert Answer
Figure shows a cell that has EMF E and internal resistance r is connected to rheostat through switch and Ammeter.
When switch is open there is no current flow in the circuit and the meaured voltage across terminals a nd B of cell equals to EMF E .
After closing the switch , voltage across the terminals a and b is measured by varying the current using Rheostat .
Terminal voltage is
As current increases , terminal voltage decreases because there is voltage across internal resistance .
It can be seen that voltage decreases linearly with increasing current .
The slope of the graph is internal resistance of cell . Y-intercept is voltage when current is zero .
Hence Y-intercept is internal resistance of cell .
Answered by Thiyagarajan K | 03 Jan, 2024, 23:19: PM
NEET neet - Physics
Asked by shaikmuneerjaan | 18 Jul, 2024, 20:58: PM
ANSWERED BY EXPERTNEET neet - Physics
Asked by anshgupta8840400152 | 01 Jun, 2024, 23:36: PM
ANSWERED BY EXPERTNEET neet - Physics
Asked by hardikmittal25 | 03 May, 2024, 14:57: PM
ANSWERED BY EXPERTNEET neet - Physics
Asked by sojusvi | 17 Apr, 2024, 13:12: PM
ANSWERED BY EXPERTNEET neet - Physics
Asked by mohitsisodia612 | 19 Mar, 2024, 21:21: PM
ANSWERED BY EXPERTNEET neet - Physics
Asked by puchkiii431 | 16 Mar, 2024, 21:43: PM
ANSWERED BY EXPERTNEET neet - Physics
Asked by riyachabhadiya5 | 03 Jan, 2024, 14:49: PM
ANSWERED BY EXPERTNEET neet - Physics
Asked by ameetapradhan55 | 10 Dec, 2023, 20:39: PM
ANSWERED BY EXPERTNEET neet - Physics
Asked by dhivi242004 | 02 Apr, 2023, 11:04: AM
ANSWERED BY EXPERTNEET neet - Physics
Asked by parvathalupeddapuli | 24 Dec, 2022, 20:25: PM
ANSWERED BY EXPERT
