What is an electric circuit?

1 Answer

Answer :

The pathway along which charged particles move is called an electric circuit. 

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Description : What is a switch? How does it work?

Last Answer : Switch is a bridge in which electric current flow along the wire. An electric current can be turned on and off by a switch. When you turn the switch on, a small metal piece inside the switch ... turn the switch off, the metal piece moves away from the wire, and the electric current stops flowing.

Description : What is a magnetic field?

Last Answer : The area around a magnet in which its magnetic force acts is called a magnetic field.

Description : What is the difference between a temporary and a permanent magnet?

Last Answer : A piece of steel or iron which keeps magnetic properties is called a permanent magnet. When piece of iron becomes magnetized when it is touched by magnet, which means magnetism has been induced in it. ... away from the magnet, it loses its magnetism. This type of magnet is called a temporary magnet.

Description : What is magnetism?

Last Answer : Magnetism is a force which appears between magnets and magnetic materials like steel and iron. For example, a magnet will attract steel pins and iron nails brought near it.

Description : What are conductors? 

Last Answer : Materials that allow an electric charge to pass along them are called conductors. Metals are good conductors of electricity.

Description : What is lightning?

Last Answer : When positive and negative charges in the clouds jump towards each other through the air. The electric Current makes a spark which is seen as a flash of lightning.

Description : How can a body be tested for the presence of a charge?

Last Answer : A body can be tested for a charge in the laboratory with the help of an instrument called a gold leaf Electroscope.

Description : What is electrostatic induction?

Last Answer : The process in which positive charge object produce the negative charge when it’s brought close to a neutral object. This process is called electrostatic induction.

Description : What are ions? How are ions formed?

Last Answer : Ions are the individual atom or group of atoms. Ions formed when individual atom, or group of atoms having a net electric charge (either positive or negative) due to loss or gain of one or more electrons.

Description : What is an atom made up of? 

Last Answer : Atoms are made up of protons, neutrons and electrons. 

Description : How Magnetism Works

Last Answer : How Magnetism Works Magnetism is a physical force. It causes certain objects to attract or repel another object. This mainly occurs in objects of metallic composition. Magnetism is caused by the motion and ... a south pole. A magnet would always have two poles even if it breaks into several pieces.

Description : Explain the concept of anti-Ferro magnetism and state its significance.

Last Answer : When the neighboring magnetic moments are aligned anti-parallel. This phenomenon is called anti ferromagnetism. This phenomenon occurs below a certain temperature known as Neel temp (TN) Eg.: Cobalt oxide, Nickel oxide, Chromium.

Description : The process of removing the unwanted magnetism is called ______ A) Unmagnetization B) Degaussing C) Diamagnetization D) Depoling

Last Answer : The process of removing the unwanted magnetism is called Degaussing

Description : If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be?

Last Answer : If residual magnetism is present in a D.C. generator, the induced e.m.f. at zero speed will be zero.

Last Answer : In D.C. machines the residual magnetism is of the order of 2 to 3 percent.