When an electric current flows through a copper wire AB as?

Behaves like a fuse.

When an electric current flows through a wire?

In fact, when electric current flows through a conductor, it generates a magnetic field around the conductor. The magnetism resulting from flowing electric charges is called electromagnetism. stronger magnetic field, you can wrap the coils around an iron rod (or other iron object).

Which effect of current is used in an electric bell?

heating effect of electric current is utilised in an electric bell.

Why is an electric fuse required in all electrical appliances Class 7?

Since the current in series remains the same, the fuse wire gets melted and breaks the circuit thereby protecting the appliance from getting damaged. Hence an electric fuse required in all electrical appliances for the protective reason of the appliance.

What is the major difference between static electricity and current electricity?

The most significant difference between the static electricity and the current electricity is that in that static electricity the charges are at rest and they are accumulated on the surface of the insulator, whereas, in current electricity the electrons are in state of motion inside the conductor.

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How does electricity flow in an electric circuit?

Answer: Electricity always flow in straight line that is known as Rectilinear propagation of light. So about an electric circuit, the electricity will also flow in straight line. An open circuit is a type of circuit which do not allow electric current to pass through it.

How fast does electricity travel through copper wire?

In the case of an electrical cord connecting a table lamp or some other household item to a power source, the copper wire inside the cord acts as the conductor. This energy travels as electromagnetic waves at about the speed of light, which is 670,616,629 miles per hour,1 or 300 million meters per second.

What flows through the conductor or copper wire in an electromagnet?

An electromagnet consists of a long coil of insulated copper wire wound around an iron rod. When the two ends of the coil are connected to a cell, a current passes through the coil and produces a magnetic effect.

Do electrons actually move in a wire?

Electrons do not move along a wire like cars on a highway. … Each atom has electrons in it. If you put new electrons in a conductor, they will join atoms, and each atom will deliver an electron to the next atom. This next atom takes in the electron and sends out another one on the other side.