MCQ
In the given circuit the current $l$ is

Image

  • A
    $0.4 \mathrm{~A}$
  • B
    $-0.4 \mathrm{~A}$
  • $0.8 \mathrm{~A}$
  • D
    $-0.8 \mathrm{~A}$

Answer

Correct option: C.
$0.8 \mathrm{~A}$
(c) $\quad R_{\max }=n R$ and $R_{\min }=R / n \Rightarrow \frac{R_{\max }}{R_{\min }}=n^2$

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