Question

Maxwell's inductance capacitance A.C. bridge is used for measurement of inductance of _________
1. low and medium Q coils
2. high Q coils
3. low Q coils
4. medium Q coils

Answer 1

Correct Answer - Option 4 : medium Q coils

• Maxwell’s bridge is used for the measurement of inductance
• Hay’s bridge is used for the measurement of inductance of high ‘Q’ coils.
• Schering bridge is used for the measurement of capacitance and loss angle
• Wien bridge is used for the measurement of frequency

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