Which of the following is used to protect tall buildings from lightning?
Conductor
Insulator
Lightning conductor
Cu wire
Which of the following is an electron bank?
Nucleus
Atom
Earth
Molecule
Which of the following has smallest resistance
Silver
Gold
Copper
Aluminium
The law of conservation of energy is put forward by
Joule
Watt
Oersted
Nemholtz
The potential difference or voltage between two points in a circuit is measured by
Ammeter
Volt meter
Galvanometer
Rheostat
Which of the following is transferred from one substance to another, when two things are rubbed together?
Electrons
Protons
Neutrons
Positrons
Which of the following is an instrument used to detect the presence of static electricity?
Telescope
Electroscope
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
Which of the following characteristic is not suitable for a fuse wire?
Thin and short
Thick and short
Low melting point
Higher resistance than rest of wiring
An electric fuse works on the
Chemical effect of current
Magnetic effect of current
Lighting effect of current
Heating effect of current
