Advertisements
Advertisements
Question
State two differences between a conductor and an insulator of electricity.
Solution
Conductors have a large number of free electrons and they offer a very small resistance in the path of current but insulators have no free electrons and they offer a very high resistance in the path of current.
APPEARS IN
RELATED QUESTIONS
Write true or false for a given statement.
Silver is an insulator of electricity.
Write true or false for a given statement.
Our body is a conductor of electricity.
A current of 1.5 A flows through a conductor for 2.0 s . What amount of charge passes through the conductor ?
In conducting materials electrons are ______ bounded with atoms.
Using the "conduction tester" on an object it was found that the bulb begins to glow. Is that object a conductor or an insulator? Explain
The handles of the tools like screwdrivers and pliers used by electricians for repair work usually have plastic or rubber covers on them. Can you explain why?
Small amount of a mineral salt present naturally in water makes it a ______ of electricity.
An electric current is passed through a conducting solution. List any three possible observations.
Insulators do not carry electric currents because they do not have free electrons.
Consider the following circuit:
The potential drop across the 20 kΩ resistor would be:
