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in Physics by (91.2k points)
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An ideal coil of 10H is connected in series with a resistance of `5(Omega)` and a battery of 5V. 2second after the connections is made, the current flowing in ampere in the circuit is
A. `(1-e^(-1))`
B. `(1-e)`
C. `e`
D. `e^(-1)`

1 Answer

0 votes
by (93.6k points)
 
Best answer
Correct Answer - A
(a)`I=(I_0)(1-e^(-(R/L)t))`
(when current is in growth in LR circuit)
`(E)/(R)(1-e^(-(R/L)t))=5/5(1-e^(-(5/10)xx2))=(1-e^(-1))`

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