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Electrostatic Shielding Video Lecture | Physics Class 12 - NEET

158 videos|453 docs|185 tests

FAQs on Electrostatic Shielding Video Lecture - Physics Class 12 - NEET

1. What is electrostatic shielding?
Ans. Electrostatic shielding refers to the process of reducing or eliminating the effect of electric fields on an object or space. It involves the use of conductive materials or structures to create a barrier that redirects or absorbs electric fields, thus protecting the interior from external electric interference.
2. How does electrostatic shielding work?
Ans. Electrostatic shielding works by utilizing conductive materials, such as metals, to create a barrier between the object or space to be protected and the external electric fields. These conductive materials act as a shield, redirecting or absorbing the electric fields and preventing them from reaching the interior. The shielding effect is achieved by the redistribution of electric charges on the surface of the conductive material.
3. What are some common applications of electrostatic shielding?
Ans. Electrostatic shielding finds applications in various fields. Some common examples include: - Electronics: Electrostatic shielding is used in electronic devices to protect sensitive components from external electric fields that could interfere with their operation or cause damage. - Power distribution: Shielding is employed in power distribution systems to minimize the effect of electric fields on the transmission lines, reducing power losses and improving efficiency. - Medical equipment: Electrostatic shielding is utilized in medical equipment like MRI machines to prevent external electric interference and ensure accurate imaging. - Aerospace industry: Shielding is important in aerospace applications to protect electronic systems from the electric fields generated by lightning strikes or atmospheric charges. - Research laboratories: Electrostatic shielding is used in laboratories working with sensitive equipment or experiments to eliminate unwanted electric fields that could affect the accuracy of measurements.
4. What are the different types of electrostatic shielding?
Ans. There are two main types of electrostatic shielding: - Electrostatic shielding by enclosure: This type of shielding involves enclosing the object or space to be protected within a conductive enclosure. The enclosure acts as a physical barrier, preventing electric fields from entering or exiting. - Electrostatic shielding by grounded conductors: Here, conductive materials are connected to a ground or earth terminal. The grounded conductors redistribute the electric charges, effectively canceling out or reducing the electric fields in the vicinity.
5. Can electrostatic shielding completely eliminate electric fields?
Ans. While electrostatic shielding can significantly reduce the effect of electric fields, it cannot completely eliminate them. There will always be some level of electric field present, especially at the edges or gaps in the shielding. However, the purpose of electrostatic shielding is to minimize the impact of these electric fields on the protected object or space, ensuring that it remains unaffected by external interferences.
158 videos|453 docs|185 tests
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