Question:
The process by which the electrons can come out of the metal in a spark plug is:
The process by which the electrons can come out of the metal in a spark plug is:
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Field emission occurs at very high electric fields and does not require thermal energy.
Updated On: Apr 26, 2025
- field emission
- ionic emission
- secondary emission
- thermionic emission
- photoelectric emission
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The Correct Option is A
Solution and Explanation
In a spark plug, the electrons are emitted from the metal surface due to the strong electric field, causing them to overcome the work function of the material. This process is called field emission, which is the emission of electrons under the influence of a strong electric field.
This type of emission occurs when a strong electric field is applied, causing the electrons in the metal to be pulled away from the surface without needing thermal excitation.
This type of emission occurs when a strong electric field is applied, causing the electrons in the metal to be pulled away from the surface without needing thermal excitation.
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