Electro Chemical Cell
Electro- Chemical Cell
An electrochemical cell is a device which converts chemical energy into electrical energy. This electrical energy maintains the flow of charge or electrons in a circuit. We can reverse the order that is we provide electric current so that the chemical reactions takes place.So we can say that It is capable of converting chemical energy into electrical energy, or vice versa.
The cells capable of generating an electric current from the chemical reactions occurring in them are called Galvanic cell or Voltaic Cell The cells which cause chemical reactions to occur in them when an electric current is passed through them are called electrolytic cells.The most common example is a dry cell which converts chemical energy into electrical energy. In the case of a rechargable cell we connect it to the mains via a charger so we provide electrical energy to it and it is converted into chemical energy.
It usually consists of two electrodes of different materials and an electrolyte. The electrode at higher potential is called anode and the one at lower potential is cathode.
A common example of an electrochemical cell is a standard 1.5-volt cell which is used to power many electrical appliances such as TV remotes and clocks.
The charge on an electron is 1.6 x 10-19 C, which is negative.
The cells which cause chemical reactions to occur in them when an electric current is passed through them are called ____________________. | |||
| Right Option : A | |||
| View Explanation | |||
Which of the following are correct : (a) The cells capable of generating an electric current from the chemical reactions occurring in them are called Galvanic cell. (b)The cells capable of generating an electric current from the chemical reactions occurring in them are called Voltaic Cell. (c) The cells which cause chemical reactions to occur in them when an electric current is passed through them are called electrolytic cells. | |||
| Right Option : C | |||
| View Explanation | |||
The cells capable of generating an electric current from the chemical reactions occurring in them are called __________________. | |||
| Right Option : D | |||
| View Explanation | |||
Students / Parents Reviews [10]
Abhyas is a complete education Institute. Here extreme care is taken by teacher with the help of regular exam. Extra classes also conducted by the institute, if the student is weak.
Om Umang
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Cheshta
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Barkha Arora
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Eshan Arora
8thAbhyas Methodology is very good. It is based on according to student and each child manages accordingly to its properly. Methodology has improved the abilities of students to shine them in future.
Manish Kumar
10thMy experience with Abhyas is very good. I have learnt many things here like vedic maths and reasoning also. Teachers here first take our doubts and then there are assignments to verify our weak points.
Shivam Rana
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Prisha Gupta
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Archit Segal
7thAbout Abhyas metholodology the teachers are very nice and hardworking toward students.The Centre Head Mrs Anu Sethi is also a brilliant teacher.Abhyas has taught me how to overcome problems and has always taken my doubts and suppoeted me.
