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Important formulas of electric field in electrostatics Video Lecture | Basic Physics for IIT JAM
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FAQs on Important formulas of electric field in electrostatics Video Lecture - Basic Physics for IIT JAM
| 1. What is the formula for electric field due to a point charge? |  |
Ans. The formula for electric field due to a point charge is given by Coulomb's Law, which states that the electric field (E) created by a point charge (Q) at a distance (r) from it is given by E = kQ/r^2, where k is the electrostatic constant.
| 2. How do you calculate the electric field between two parallel plates? | |
Ans. The electric field between two parallel plates is calculated by dividing the potential difference (V) between the plates by the distance (d) separating them. Mathematically, it can be expressed as E = V/d.
| 3. What is the formula for electric field due to a uniformly charged ring? | |
Ans. The formula for electric field due to a uniformly charged ring at a point on the axis of the ring is given by E = (kQz)/(z^2 + R^2)^(3/2), where Q is the charge on the ring, z is the distance between the point and the center of the ring, R is the radius of the ring, and k is the electrostatic constant.
| 4. How can electric field be calculated using Gauss's Law? | |
Ans. Electric field can be calculated using Gauss's Law by integrating the electric field over a closed surface and equating it to the total charge enclosed by that surface divided by the permittivity of the medium. Mathematically, it can be expressed as ∮ E · dA = Qenc/ε0, where E is the electric field, dA is the area vector, Qenc is the total charge enclosed by the surface, and ε0 is the permittivity of free space.
| 5. What is the formula for electric field due to a uniformly charged sphere? | |
Ans. The formula for electric field due to a uniformly charged sphere at a point outside the sphere is given by E = (kQ)/r^2, where Q is the charge on the sphere, r is the distance between the center of the sphere and the point, and k is the electrostatic constant. Inside the sphere, the electric field is zero.
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Dec 22, 2024 Last updated |
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