Relative permittivity can be measured by which bridge

Electrical Engineering XYZ MCQs

Relative permittivity can be measured by which bridge:

1. Desautys
2. Wheatstones
3. Schering
4. Hays

Correct answer: 3. Schering

Explanation: Relative permittivity, also known as dielectric constant, can be measured using a Schering bridge.

1. Desautys bridge: This bridge is primarily used for measuring the capacitance of a capacitor.
2. Wheatstone bridge: This bridge is used for measuring resistance, and it’s not suitable for measuring capacitance or relative permittivity directly.
3. Schering bridge: This bridge is specifically designed for measuring the capacitance and dissipation factor of a capacitor, which are essential parameters for determining the relative permittivity of a material.
4. Hays bridge: The Hays bridge is a variant of the Wheatstone bridge, used for measuring inductance. It’s not used for measuring capacitance or relative permittivity.

Therefore, the correct answer is Schering bridge.