Chemical Effects of Electric Current Quiz 1

In LEDs, the longer lead (wire) is always connected to the ................ terminal

When electrodes are immersed in water and electricity passed, the bubbles formed on the positive terminal is actually .............. gas.

When electrodes are immersed in water and electricity passed, the bubbles formed on the negative terminal is actually ............. gas.

A coating of ................ is deposited on iron to protect it from corrosion and formation of rust

The process of depositing a layer of any desired metal on another material by means of electricity is called ...................

Some liquids are good conductors of electricity and some are poor conductors. Which one is a poor conductor?

Plastic wire is

An electric lamp glows due to

Flow of electron is called

Magnetic compass connected In a circuit is used to check: