Answer / priyank sharma neb alwar rajas

mV means milivolt, which is generated by b/w thermocouple
junctions cause of seeback effect.as per seeback effect the
difference b/w temperatur on two junctions induce the
voltage in range of mV.That induce voltage may be different
according to use of thermocouple as J,K,L & M TYPE.

Answer / chandramauli sinha

mV is milivolt, self generated by thermocouple without any
source power.

This is similar to instruments that gives ma (miliamps).

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