Electricity And Its Type
Electricity And Its Type
Electricity is the branch of physics in which we study electric charges, at rest (electrostatics or static electricity) and in motion (current electricity). Electricity is one of the most important form of energy. It is produced because of charges. The matter is made up of electrons, protons and neutrons. Normally, a body has equal number of protons and electrons, and is therefore, electrically neutral. However, in certain situations, the balance of charges in a body is disturbed. For example, when a glass rod is rubbed with a silk cloth, some electrons get transferred from the glass rod to the silk. The silk cloth, which gains electrons, becomes negatively charged. And the glass rod, which is left with more protons than electrons, becomes positively charged.
Charged particles or objects can exert forces on each other. While like (similar) charges repel each other, unlike charges attract. Another important thing about charged particles is that they can flow, i.e., they can move in a particular direction. This flow of charged particles is called an electric current. There are two main types of electricity,
Electricity is the branch of physics in which we study electric charges, at rest (electrostatics or static electricity) and in motion (current electricity). An electric signal in a conductor travels at a speed of light i vaccum i.e.,
Static Electricity:
It is generated by rubbing two or more objects causing to build up of charges on an object. These charges do not flow continuously.The electricity produced is a property of charges at rest, and hence is called static electricity.
Current Electricity:
It is generated by the flow of electrical charge through a conductor across an electrical field. The electricity produced is because of an ordered motion of charged particles, and hence is called current electricity. Electric current is the continuous flow of electric charges (electrons) through a material. It means the flow of electric current in an electric circuit.
Direction of Electric Current:
Electric current flows in a particular direction. In an electric circuit, the electric current flows from the positive terminal to the negative terminal of the electric cell.
The entries in the Column-II are in relation to the entries in Column-I. Match Them
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| Right Option : A | |||||||||||||
| View Explanation | |||||||||||||
Which of the following are correct : (a) Static energy is generated by the flow of electrical charge through a conductor across an electrical field. (b) Current energy is generated by rubbing two or more objects causing to build up of charges on an object. (c) Charged particles or objects can exert forces on each other. While like (similar) charges repel each other, unlike charges attract. | |||
| Right Option : C | |||
| View Explanation | |||
Study of charges when they are at a fixed position is ___________________ | |||
| Right Option : B | |||
| View Explanation | |||
Students / Parents Reviews [20]
My experience with Abhyas academy is very good. I did not think that my every subject coming here will be so strong. The main thing is that the online tests had made me learn here more things.
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8thWe started with lot of hope that Abhyas will help in better understnding of complex topics of highers classes. we are not disappointed with the progress our child has made after attending Abhyas. Though need to mention that we expected a lot more. On a scale of 1-10, we would give may be 7.
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8thThird consective year,my ward is in Abhyas with nice experience of admin and transport support.Educational standard of the institute recumbent at satisfactory level. One thing would live to bring in notice that last year study books was distributed after half of the session was over,though study ...
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Manish Kumar
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Aman Kumar Shrivastava
10thAbhyas institute is one of the best coaching institute in the vicinity of Ambala Cantt area. The teachers of the institute are well experienced and very helpful in solving the problems of the students.The good thing of the institute is that it is providing extra classes for the students who are w...
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Shreya Shrivastava
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Om Umang
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Aman Kumar Shrivastava
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