1.

Fora conducting wire V rarr I graph is as shown in figure given below, therefore its resistance will be .....

Answer»

`SIN 50^(@)`
`COS 50^(@)`
`tan 50^(@)`
`cot 50^(@)`

SOLUTION :`tan 50^(@)`
Slope of graph = `(dy)/(dx) = tan THETA`
Here, dy= DV, dx = dI
Now R = `(V)/(I), R = (dV)/(dI)`
`therefore R = (d V)/(d I) = (dy)/(dx) = tan theta = tan 50 `


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