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Among the following which one of the bridge method is commonly used for finding mutual inductance

Among the following which one of the bridge method is commonly used for finding mutual inductance Correct Answer Heaviside Campbell Bridge 

Heaviside bridge:

  • Heaviside bridge is used to measure the mutual inductance.
  • The bridge which measures the unknown mutual inductance regarding mutual inductance such type of bridge is known as the Campbell bridge.
  • Mutual inductance is the phenomenon in which the variation of current in one coil induces the current in the nearer coil.
  • The bridge also used for measuring the frequency by adjusting the mutual inductance until the null point is not obtained.

Important Points

Type of Bridge

Name of Bridge

Used to measure

Important

DC Bridges

Wheatstone bridge

Medium resistance

 

Corey foster’s bridge

Medium resistance

 

Kelvin double bridge

Very low resistance

 

 

Loss of charge method

High resistance

 

 

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

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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