
1) Measuring instrument
Found on
https://www.crosswordclues.com/clue/maxwell-bridge

To avoid the difficulties associated with determining the precise value of a variable capacitance, sometimes a fixed-value capacitor will be installed and more than one resistor will be made variable. It cannot be used for the measurement of high Q values. It is also unsuited for the coils with low Q values, less than one, because of balance conve...
Found on
http://en.wikipedia.org/wiki/Maxwell_bridge
No exact match found.