Question

Of the following, the one that does not make use of chemical effect of electric current is :

• A. Electroplating
• B. Electrotyping
• C. Thermoelectric refrigerator
• D. Voltaic cells

Answer 1

Answer: (C)

Thermoelectric refrigerator

Thermoelectric refrigerator doesn't use the chemical effect of current whereas all other uses it.

Thermoelectric coolers operate according to the Peltier effect. The effect creates a temperature difference by transferring heat between two electrical junctions. A voltage is applied across joined conductors to create an electric current. ... The main application of the Peltier effect is cooling.