An insulator can be charged with
Static electricity
Current electricity
A cell
A battery
Which of the following is transferred from one substance to another, when two things are rubbed together?
Electrons
Protons
Neutrons
Positrons
The law of conservation of energy is put forward by
Joule
Watt
Oersted
Nemholtz
Which of the following is used to protect tall buildings from lightning?
Conductor
Insulator
Lightning conductor
Cu wire
An LED can emit
Red light
Yellow light
Green light
( A ), ( B ) or (C)
The unit of electric charge is
Ampere
Newton
Coulomb
The electricity produced on rubbing is called
Induced electricity
All the above
Which of the following is the process by which an object is connected to earth so as to neutralize its charge?
Conducting
Insulating
Earthing
Heating
The unit of electric current is
Volt
Which of the following is an electron bank?
Nucleus
Atom
Earth
Molecule
