In the circuit shown in figure, the resi...

In the circuit shown in figure, the resistance R has a value that depends on the current. Specifically R is 20 `Omega` when `i` is zero and the amount of increase in resistance is numerically equal to one-half of the current. What is the value of current I in circuit?

A

8.33 amp

B

10 amp

C

12.5 amp

D

18.5 amp

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The correct Answer is:

B

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