39it mostly means a sudden change.
A circuit consists of a permanent source of emf E,a resistor R and a capacitance C connected in series.At t=0,the capacitance of capacitor
jumprised abruptly by factor n.Find current in circuit as function of time
(Internal resistance neglected)
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9 Answers
1Got a doubt. does this mean anything more than replacing the C by nC [7]
bcoz it t=0 no?
24ya i too think the same way.....i have solved it but dont know whether its corect or not becoz i dont have the answer..[2][2]
106i think.... just before t=0 capacitor is completely charged at c=c and at t=0 the capacitance changes from c to nc ... so i think the diff eqn wud be...
iR + (Ec + q)/nc - E = 0
==> Rdq/dt + (Ec + q)/nc - E = 0
i dont know if that is correct.. but mujhe toh wohi lag rahaa hai...
1oh yeah thanks asish !
par ckt is closed woh to bataya nahin hain naa ?[7]
106agar circuit closed nahiin hota... then how will we find current?