what is peltier effect ??
why resistance box of coil folded doubel ??
what is Thomas's effect ??
what is tangent law ??
what is fax ??
what are optical fibres ??
how moving coil galvanometer made dead beat ??
seebeck effect ??
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an effect whereby heat is given out or absorbed when an electric current passes across a junction between two materials.Generally wires in the resistance box are double folded and then coiled to nullify inductance effect. ... Because of this Magnetic induction caused by one half of the wire is cancelled by the magnetic induction caused by other half of the wire and keeping the wires with pure resistance.
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