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Inverse cube law (deflection method) - Electrical Engineering Video Lecture - Electrical Engineering (EE)

FAQs on Inverse cube law (deflection method) - Electrical Engineering Video Lecture - Electrical Engineering (EE)

1. What is the inverse cube law in electrical engineering?
Ans. The inverse cube law in electrical engineering refers to the relationship between the deflection of a beam and the distance between the beam and a point charge. According to this law, the deflection of the beam is inversely proportional to the cube of the distance between the beam and the point charge.
2. How is the deflection method used to measure the inverse cube law in electrical engineering?
Ans. The deflection method is used to measure the inverse cube law in electrical engineering by placing a beam between two fixed points and applying a known force to it. The beam is then deflected by an electrostatic force exerted by a point charge. By measuring the deflection of the beam at different distances from the point charge, the inverse cube law can be verified.
3. What is the significance of the inverse cube law in electrical engineering?
Ans. The inverse cube law is significant in electrical engineering as it helps in understanding the behavior of electric fields and their effects on objects at different distances. It is used to calculate the strength of electric fields, determine the forces exerted on charged particles, and design systems that rely on electrostatic forces.
4. How does the deflection method provide evidence for the inverse cube law in electrical engineering?
Ans. The deflection method provides evidence for the inverse cube law in electrical engineering by measuring the deflection of a beam at different distances from a point charge. As the distance between the beam and the point charge increases, the deflection decreases in accordance with the inverse cube law. This consistency in the relationship between deflection and distance confirms the validity of the inverse cube law.
5. Are there any practical applications of the inverse cube law in electrical engineering?
Ans. Yes, there are several practical applications of the inverse cube law in electrical engineering. It is used in the design of electric field sensors, such as electrostatic voltmeters and capacitance meters, for accurate measurement of electric fields. It is also applied in the design of electric field shielding and protection systems to minimize the effects of electric fields on sensitive electronic devices. Additionally, the inverse cube law is used in the calculation of the radiation pattern and field strength of antennas in wireless communication systems.
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