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The concept of electric field Video Lecture | Electricity & Magnetism - Physics
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FAQs on The concept of electric field Video Lecture - Electricity & Magnetism - Physics
| 1. What is an electric field in physics? |  |
Ans. In physics, an electric field is a region around a charged particle or object where an electric force is exerted on other charged particles or objects. It is a property of the space surrounding the charged object and can be visualized as the influence or effect that the charged object has on other charges in its vicinity.
| 2. How is the electric field calculated? | |
Ans. The electric field at a point in space can be calculated by dividing the electric force experienced by a small test charge at that point by the magnitude of the test charge. Mathematically, it is represented as E = F/q, where E is the electric field, F is the electric force, and q is the magnitude of the test charge.
| 3. What are the units of electric field? | |
Ans. The SI unit of electric field is newton per coulomb (N/C). This unit represents the force per unit charge experienced by a charged particle in the electric field. Another commonly used unit is volts per meter (V/m), which relates the electric field to the potential difference.
| 4. How does an electric field affect charged particles? | |
Ans. Charged particles experience a force when placed in an electric field. If the particle has the same charge as the source of the electric field, it will experience a repulsive force and move away from the source. Conversely, if the particle has an opposite charge, it will experience an attractive force and move towards the source.
| 5. Can electric fields exist in a vacuum? | |
Ans. Yes, electric fields can exist in a vacuum. Unlike other physical fields, such as electromagnetic waves, electric fields do not require a medium to propagate. They can exist and exert their influence even in empty space. This property of electric fields is fundamental to the understanding of electromagnetism and has important applications in various fields of science and technology.
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Dec 22, 2024 Last updated |
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