When you inserted the galvanized or zinc nail into the fruit, the negatively charged ions or the electrons started to move from the fruit to the zinc nail thus leaving the protons in the fruit. This transfer of electrons generates electricity as soon as you attach the wires to the nail, and the bulb lights up!

Grapes are made mostly with juice that conducts electricity (think of how salt water conducts electricity). The grape halves are like little cups full of this conductive juice connected by a tiny bridge (the part that you didn’t cut all the way through).

The acidity of citrus fruit juice acts as an electrolyte that conducts electricity. Citrus fruits such as oranges, grapefruits, limes and lemons have high acidity levels. One lemon can produce 7/10 of one volt of electricity.

While an apple will not conduct enough electricity to power a light bulb, you can verify the electricity level with a voltmeter. This experiment works by using a nail and a wire as terminals, and the juice of the apple acts as an electrolyte through which ions can flow.

Honey is a solution of sugars. So, it does not conduct because it does not have ions or charged particles.

Tap water, lemon juice and mercury is the best liquid conductor compare with others. Because of any solution to conduct, you need ions or free electrons. So these are good conductor having contain free ions.

Liquids as a good and bad conductor Most liquids that conduct electricity are solutions of acids, bases and salts. Distilled water is free of salts hence it is a poor conductor.

no all liquid doesn’t conduct electricity eg: water is a liquid and it doesn’t conduct electricity. Yes to conduct electricity solution must release free ions or charged electrons or their respective atoms to conduct electricity.

Complete answer: Lemon juice has citric acid in it. Even though lemon as well as vinegar are weak conductors of electricity. The citric acid in the lemon will be acting as an electrolyte, a solution that can conduct electricity.

While all three drinks are conductive, Diet Coke and Red Bull are carbonated which produces carbonic acid and allows a small amount of electrons to flow. Gatorade on the other hand contains electrolytes (salts) to help athletes replace salt making it a much better conductor.

Milk conducts electricity because milk is a good conductor of electricity because it contains water and lactic acids and other salts.