To Study the Wien Robinson's frequency Bridge 
Wien bridge is suitable for measurement of frequency roughly in the range of
The bridge is designed to be frequency sensitive but what kind of periodic waveform will cause least amount of distortion when finding null point?
We have two frequency dependent passive elements in the experiment. They can be either a pair of capacitors or a pair of inductors. If inductors are used then what specific unwanted phenomenon might happen?
what generic design of inductors can be used to remove magnetic coupling in the bridge circuit?
Stray capacitance between the bridge elements and also between bridge element and the ground affect the accuracy of AC bridge measurment. To avoid that we shield the individual elements. Among the following measures, which one cannot be done through shielding?
A bridge consisting of inductors is shown in the given figure. It consists of a coil with inductance L1 and resistance r1 in series with a non-inductive resistance R. Arm bc and cd are each a non-inductive resistance of 100 ohm. Arm ad consists of standard variable inductor L of resistance 32.7 ohm. Balance is obtained when L = 47.8 mH and R = 1.36 ohm. Find the resistance and inductance of coil in the arm ab.
A capacitance bridge shown in the given figure is used to measure unknown inductance in comparison with a given capacitance. The values of the components for a balanced bridge is: R2 (only marked as R in the diagram) = 400 ohm ; R3 = 600 ohm ; R4 = 1000 ohm ; C4 = 0.5 uF. Calculate the values of R1 and L1.
The arms of a four arm bridge abcd ( all the bridges we've dealt with have four arms and abcd is just a naming convention ) supplied with sinusoidal voltage with the arms having following values: arm ab: A resistance of 200 ohm in parallel with a capacitance of 1 uF arm bc: 400 ohm resistance arm cd: 1000 ohm resistance arm da: a resistance R2 in series with a 2uF capacitance. Determine the value of R2 and the frequnecy at which the bridge will balance.
