Physics Formulas Related to Electricity and Magnetism

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Physics Formulas Related to Electricity and Magnetism

Here we are providing physics formulas related to Electricity and Magnetism. Important electricity and magnetism formulas are covered in this article. Students are suggested to remember all formulas in order to grasp physics concepts well.

1. Coulomb’s Law: \[ F = \frac{k \cdot |q_1 \cdot q_2|}{r^2} \]
2. Electric Field (Point Charge): \[ E = \frac{k \cdot |q|}{r^2} \]
3. Electric Field (Uniformly Charged Sphere): \[ E = \frac{k \cdot |Q|}{r^2} \]
4. Electric Potential Energy: \[ PE = \frac{k \cdot |q_1 \cdot q_2|}{r} \]
5. Electric Potential (Point Charge): \[ V = \frac{k \cdot |q|}{r} \]
6. Electric Potential (Uniformly Charged Sphere): \[ V = \frac{k \cdot |Q|}{r} \]
7. Ohm’s Law: \[ V = I \cdot R \]
8. Power in Electric Circuits: \[ P = I \cdot V \]
9. Electric Current Density: \[ J = \frac{I}{A} \]
10. Resistance (Resistivity): \[ R = \rho \cdot \frac{L}{A} \]
11. Magnetic Field (Straight Wire): \[ B = \frac{\mu_0 \cdot I}{2\pi \cdot r} \]
12. Magnetic Field (Current Loop): \[ B = \frac{\mu_0 \cdot I \cdot R^2}{2(R^2 + z^2)^{\frac{3}{2}}} \]
13. Magnetic Force on a Moving Charge: \[ F = q \cdot v \cdot B \cdot \sin(\theta) \]
14. Magnetic Force on a Current-Carrying Conductor: \[ F = I \cdot L \cdot B \cdot \sin(\theta) \]
15. Magnetic Flux: \[ \Phi = B \cdot A \cdot \cos(\theta) \]
16. Faraday’s Law of Electromagnetic Induction: \[ \mathcal{E} = -\frac{d\Phi}{dt} \]
17. Lenz’s Law: \[ \mathcal{E} = -N \cdot \frac{d\Phi}{dt} \]
18. Self-Inductance: \[ \mathcal{E} = -L \cdot \frac{dI}{dt} \]
19. Mutual Inductance: \[ \mathcal{E}_2 = -M \cdot \frac{dI_1}{dt} \]
20. Magnetic Flux Density (B-field): \[ \vec{B} = \mu_0 \cdot \vec{H} \]

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