Electrical Measurements Lab

Wein Robinson Bridge

Q1. What is the main advantage of using the Wien Robinson bridge for measuring capacitance?

High accuracy

Low cost

Wide frequency range

Small size

Q2. Which component of the Wien Robinson bridge is sensitive to frequency?

Resistor R1

Capacitor C1

Resistor R3

Capacitor C2

Q3. What is the formula for calculating the frequency using the Wien Robinson bridge?

\( f = \frac{1}{2\pi\sqrt{R1R2C1C2}} \)

\( f = \frac{1}{R1C1} \)

\( f = \frac{R1R2C1C2}{2\pi} \)

\( f = \frac{R1}{2\pi C1} \)

Q4. In a Wien Robinson bridge, what happens when the bridge is balanced?

Null deflection of the indicator

Maximum voltage across resistor R3

Minimum current through resistor R2

High frequency oscillations

Q5. What is the primary application of the Wien Robinson bridge?

Measurement of resistance

Measurement of inductance

Measurement of frequency

Measurement of voltage