Find the time constant of the circuit

Fatima Hasan
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Homework Statement


In the circuit shown S is closed at t = 0 . Find the time constant (in s) if C = 2μF.
23_EE7_FA3-_CEE1-4358-_BDA9-_D46_E4_CDDFB8_F.jpg


Homework Equations


τ = Req C

The Attempt at a Solution


R = ##\frac{10*10}{10+10}##
R = 5MΩ
τ = 5*106 * 2*10-6
= 10 s
Could somebody check my answer?
 
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