When a quantity of electricity is converted to heat, the energy produced is measured in

Joules under the term Joules Heating.

Explanation:

No conductor is perfect so when there is energy going through some of the energy will fight resistance, and will tend to build up, this energy will turn to either heat, or light as the light filament in a lightbulb.

They call it Joules

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ca has a crystalline lattice with positive ions (since it is a metal, metals are positively charged) and electrons flow freely in its structure since the ca atoms have a large nuclear radius so the electrons are not tightly held, therefore the electrons can flow freely since they are not being highly attracted by the nucleus. moreover, one of the properties of metals are that they are conductors of electricity, thus proving ca is the element.