To protect against corrosion in the hot water system.

Create a magnetic field

Allow the hot water system to reach temperature

Provide additional resistance

Chemical

Magnetic

Physiological

Electrolytic

Lightning arrestors

Earthing of exposed metal

Circuit-breakers and fuses

Insulation, barriers, enclosures

Hair loss and balding

No impact

Stimulate nerves, causing muscle contractions

Joint pain

Energy is the rate at which work is done, and work is the measure of stored energy

Work is the transfer of energy from one form to another or from one object to another

Work is the potential energy stored in an object, while energy is the distance over which force is applied

Work and energy are unrelated; work is a measure of force, while energy is a measure of motion

R3

R1

R2