Good and bad conductors of electricity

Before we study this chapter, let's look at what are good and bad conductors of electricity

Good Conductor of Electricity

Those materials which allow electricity to pass through them are called good conductors of electricity

Example

• Solids like Copper, Aluminium conduct electricity
• Liquids like Tap Water, Lemon Juice, Mercury conduct electricity

Bad Conductor of Electricity

Those materials which do not allow electricity to pass through them are called Bad Conductors

Example

• Solids like Rubber, Plastic, Wood do not conduct electricity
• Liquids like Distilled Water, Alcohol do not conduct electricity

If we attach wires to the metal part of the screwdriver, the bulb will glow.

So, it is a good conductor of electricity

But, If we attach wires to the plastic part of the screwdriver, the bulb will not glow.

So, it is a bad conductor of electricity

Difference between Good Conductor and Bad Conductor of Electricity