a 10 volt battery of negligible internal resistance is charged by a 200 volts DC supply the resistance in the charging circuit in 38 ohm what is the value of charging current
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Arrange of cells are shown in figure , plz see attachment .
Let i current passing through circuit .
use Kirchoff's law,
-10V + i × 38 - 200V = 0 [ ∵in closed loop sum of potential difference equal = 0]
38i - 190 = 0
⇒ 38i = 190
⇒ i = 190/38 = 5A
Hence, current passing through it is 5Amperes
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