A) \[\frac{33}{5}\Omega \]
B) \[5\,\Omega \]
C) \[\frac{20}{3}\Omega \]
D) \[7\,\,\Omega \]
Correct Answer: C
Solution :
Initially \[\frac{4}{60}\,=\frac{Q}{40}\,\] \[Q=\frac{16}{6}=\frac{8}{3}\Omega \] Finally \[\frac{4+R}{80}=\frac{Q}{20}=\frac{8}{60}\] \[4+R=\frac{64}{6}\] \[R=\frac{64}{6}-4\,=\frac{64-24}{6}=\frac{40}{6}\] \[=\frac{20}{3}\Omega \]You need to login to perform this action.
You will be redirected in
3 sec