Why The Light Bulb Lits In Salt Water And Not In Sugar Water?

Dissolved sugar is not an ionic solution and hence can not transport electrons, so it can't pass a current of electricity.

Salt is an ionic solution and has dissloved Na+ and Cl- which freely allows the passage of an electric current.

No current - no lighting of light bulb.

Do you propose makes the bulb easy? you would be doing an test on conductivity of electrolytes. The circuit many times encompass a easy build linked to a electricity source(dry cellular?) via wires. between the connecting wires is broken and its ends are used as probes. various supplies are tried between the probes to be certain in the event that they habit electricity. If the textile between the probes habit electricity, the bulb lights. all the supplies you indexed won't habit, different than once you're making a answer of salt and water. once you dissolve salt in water, the salt would launch sodium and chloride ions. This ions enable electricity to habit. Such recommendations(recommendations that incorporate ions) are referred to as electrolytes.

The salt, when water is added, has ions (particles with a positive or negative charge), which conduct electicity. Sugar does not.

Electricity is the movement of electrons through a conductor. If you are moving it through something without electrons that are easily moved, it will not conduct as well as something that has lots of ions, like salt water or copper wire.

What kind of light bulb, voltage and why do you want to immerse it?