Peltier effect.
By the passage of electric current through a thermocouple with junctions initially at the same temperature, difference of temperature is developed between the two junctions. This effect is known as peltier's effect.
angle of contact.
It is defined as the angle between the tangent to the liquid surface at the point of contact and solid surface inside the liquid is called as angle of contact The value of angle of contact depends upon (i) Nature of solid and liquid in contact (ii) Cleanliness of the surface in contact (iii) Medium above the free surface of liquid
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