It could stand for Electromagnetic field, or Electromotive force.
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thermocouple effect
emf in volts
Bcoz the emf which is to be measured is less than emf of driving cell....
Yes. Another term for voltage is EMF, electro-motive-force.
What is meant by the term 'compaction'
EMF (E''electromotive Force'') is another term for Volts, hence the E in electronic formulas and EMF is measured with a volt meter. A potentiometer is not a meter at all, it is a variable resistor