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The Wheatstone bridge is widely used for precision measurement of resistance:

A) from 1 Ω to few MΩ

B) very low resistance

C) very high resistance

D) 1 mΩ - 10 kΩ

E) 0.1Ω - 100 kΩ

Choose the correct answer from the options given below:


1. (A) only
2. (A) and (B) only
3. (B) and (C) only
4. (D) and (E) only

1 Answer

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Best answer
Correct Answer - Option 1 : (A) only

Wheatstone is used for the measurement of a medium value range of resistance from 1 Ω to a few M Ω.

Type of Bridge

Name of Bridge/Method

Used to measure

Important

DC Bridges

Wheatstone bridge

Medium resistance

1Ω to
few MΩ

Corey foster’s bridge

Medium resistance

1Ω to
few MΩ

Kelvin double bridge

Very low resistance

Below 1Ω

 

Loss of charge method

High resistance

Above

 

Megger

High insulation resistance

Resistance of cables

AC Bridges

Maxwell’s inductance bridge

Inductance

Not suitable to measure Q

Maxwell’s inductance capacitance bridge

Inductance

Suitable for medium Q coil (1 < Q < 10)

Hay’s bridge

Inductance

Suitable for high Q coil (Q > 10), slowest bridge

Anderson’s bridge

Inductance

5-point bridge, accurate and fastest bridge (Q < 1)

Owen’s bridge

Inductance

Used for measuring low Q coils

Heaviside mutual inductance bridge

Mutual inductance

 

Campbell’s modification of Heaviside bridge

Mutual inductance

 

De-Sauty’s bridge

Capacitance

Suitable for perfect capacitor

Schering bridge

Capacitance

Used to measure relative permittivity, dielectric loss

Wein’s bridge

Capacitance and frequency

Harmonic distortion analyzer, used as a notch filter, used in audio and high-frequency applications

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