Electricity

Movement of electrons in a material constitutes electric current and generates an energy called-
1. heat energy
2. electric energy
3. thermal energy
4. free energy
Electrons revolve around the nucleus in different paths called _
1. orbitals
2. orbits
3. shells
4. both b&c
What is the basic property of matter that causes objects to attract or repel each other.
1. current
2. electricity
3. charge
4. coulomb
Which of the following carries positive charge?
1. electron
2. proton
3. neutron
4. all of the above
What is the SI unit of electric charge?
1. coulomb
2. faraday
3. ampere
4. candela
Opposite charges_ each other and like charges _ each other.
1. attract,attract
2. repel,attract
3. attract,repel
4. repel,repel
The substance which gains electrons become _ charged .
1. positively
2. negatively
3. neutrally
4. none of these
An atom consists of-
1. electrons
2. protons
3. neutrons
4. electrons,protons & neutrons
A device that stores and produces electricity from chemical cells is called _.
1. balance
2. battery
3. coulombmeter
4. cell
Flow of electric charges through a material is called _
1. electricity
2. current
3. cells
4. flux