W3.CSS
A body which is short of electrons has a ----------charge on it.
Neutral
Positive and Negative
Metals which allow an electric current to flow through them easily are called
Transmitters
Electromagnetic
Electromagnetic are sometimes called conductor magnetic and have a:
Hard iron core
Soft magnetic core
Soft iron core
Soft zinc core
The filament of light bulb is usually made of:
Nichrome is a metal which -------- the flow of electricity.
The area around the magnet is called a:
Magnetic field
Electric field
Magnetic cloud
Positive field
As the distance from the magnet increases, the strength of magnetic field:
Remains the same
May increase or decrease
The complete name for the north pole of a magnet is the:
North seeking pole
South seeking pole
Attracting pole
Repelling pole
The north poles of two magnets ------------ each other.
North pole of one magnet ------------the south pole of another magnet.
An electric current is flow of:
Nichrome is a high resistance:
Electricity can be converted into:
Mechanical energy
Light energy
Sound energy
All of these
Electricity can flaw through:
Electricity is a form of:
Electricity flows easily through some ---------------like copper and aluminum.
Electricity ----------------- easily through brass, nichrome and tungsten.
Does not flow
Does not resist
An unbroken path for the flow of electricity is called a:
Series circuit
Parallel circuit
Complete circuit
Open circuit
If the path is Incomplete and the current cannot flaw the circuit is called:
An opencircuit
A parallel circuit
A close circuit
A series circuit
A circuit which allows only one path for the flow of electricity Is called:
Parallel circuit
Series circuit
Open circuit
Close circuit
A circuit which allows several paths for the flow of electricity is called:
Series circuit
Parallel circuit
Open circuit
Complete circuit
Magnets made by using electric current are called:
Magno electrics
Electrodes
An electromagnet loses its magnetism when:
Current is increased
Current is increased
Current is stopped
Current is supplied
-------------- magnets are used m loudspeakers and electric meters.
When an electromagnet is switched on, there is a current:
Only in the coil
Only in the core
In both the coil and the core
in one of them but which it does not matter
