A) \[1\,\Omega \]
B) \[0.5\,\Omega \]
C) \[2\,\Omega \]
D) \[3\,\Omega \]
Correct Answer: B
Solution :
(b) \[0.5\,\Omega \] Current drawn from the cell, \[l=\frac{\varepsilon }{R+r}\] \[0.2=\frac{2.1}{(10+r)}\] \[2+0.2r=2.1\] \[0.2r=0.1\] \[r=0.5\,\Omega \]
You need to login to perform this action.
You will be redirected in
3 sec
