Question

The four arms of an AC bridge network are as follows:

Arm AB: unknown impedance
Arm BC: standard capacitor C2 of 1000pf
Arm CD: a non-inductive resistance of R of 100 Ω in parallel to a capacitor of 0.01 μF
Arm DA: a non-inductive resistance of 1000 Ω

The supply frequency is 50 Hz and connected across terminals B and D. If the bridge is balanced with the above value, determine the value of unknown Capacitance.

a.

100 pf

b.

1000 pf

c.

500 pf

d.

10 pf

Answer: (a).100 pf

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Q. The four arms of an AC bridge network are as follows: Arm AB: unknown impedance Arm BC: standard capacitor C2 of 1000pf Arm CD: a non-inductive resistance of R of 100 Ω in...

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Arm DA: a non-inductive resistance of 1000 Ω

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