1.

In given RC circuit, capacitance of capacitor C_(1) = 3 mu F and C_(2) = 1 mu F.It is given that time constant of circuit between A and B is 3 millisecond.Value of R will be

Answer»

`1 OMEGA`
`10 Omega`
`1000Omega`
`1000 Omega`

Solution :Equivalent CIRCUIT can be drwan as below

`RC = 3 XX 10^(-3) SEC`
`R xx 3 xx 10^(-6) = 3 xx 10^(-3)`
`R = 1000 Omega`


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