Download Aptitude Crack
img not found img not found

Capacitors

Q1:

The reactance of C2 is _____ in the given circuit.

A 66 omega.gif

B 80 omega.gif

C 199 omega.gif

D 398 omega.gif

ANS:D - 398 omega.gif

Total c=(2*(5+1))/(2+5+1) = 1.5.

R(total) = 1/(2*3.14*1.5*10^6) = 265.15.

Now r1/(r2||r3) = (c2||c3)/c1.

Therefore r1/(r2||r3) = 6/2 = 3.
Therefore (r2||r3) = r/(r1+r2||r3) = 265.15/4 = 66.28.

Now again r2/r3 = c3/c2.
Thus r2 = (r2||r3)* (c3+c2)/c2 = 66.28 *6 /1 = 397.68 == 398.



img not found
img

For help Students Orientation
Mcqs Questions

One stop destination for examination, preparation, recruitment, and more. Specially designed online test to solve all your preparation worries. Go wherever you want to and practice whenever you want, using the online test platform.