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Formulas

Physics

Showing formulas of Physics

Showing 18 of 258 formulas Page 11 of 11

Absolute Refractive Index

Physics → Optics → Light - Reflection and Refraction → Refraction
$$n_2/n_1 = v_1/v_2$$
Relationship between refractive indices and speeds of light in two media.
📖 Physics 📚 Light - Reflection and Refraction

Total Energy (Mechanical)

Physics → Mechanics → Work and Energy → Energy
$$E_{total} = E_k + E_p$$
Sum of kinetic and potential energy in a system.
📖 Physics 📚 Work and Energy

Coulomb's Law (Vector Form)

Physics → Electromagnetism → Electric Charges and Fields → Electrostatics
$$\vec{F} = \frac{1}{4\pi\epsilon_0} \frac{q_1 q_2}{r^2} \hat{r}$$
Force between two point charges in vacuum.
📖 Physics 📚 Electric Charges and Fields

Gauss's Law

Physics → Electromagnetism → Electric Charges and Fields → Electric Flux
$$\oint \vec{E} \cdot d\vec{A} = \frac{q_{in}}{\epsilon_0}$$
Total electric flux through a closed surface is $1/\epsilon_0$ times the net charge enclosed.
📖 Physics 📚 Electric Charges and Fields

Energy Stored in Capacitor

Physics → Electromagnetism → Electrostatic Potential and Capacitance → Capacitors
$$U = \frac{1}{2}CV^2 = \frac{1}{2}QV$$
Potential energy stored in the electric field of a capacitor.
📖 Physics 📚 Electrostatic Potential and Capacitance

Drift Velocity

Physics → Electricity → Current Electricity → Conduction
$$v_d = \frac{eE\tau}{m}$$
Average velocity attained by electrons in a conductor due to an electric field.
📖 Physics 📚 Current Electricity

Kirchhoff's Junction Rule (KCL)

Physics → Electricity → Current Electricity → Circuit Laws
$$\sum I_{in} = \sum I_{out}$$
Sum of currents entering a junction equals the sum of currents leaving it.
📖 Physics 📚 Current Electricity

Wheatstone Bridge Balance

Physics → Electricity → Current Electricity → Measuring Instruments
$$\frac{P}{Q} = \frac{R}{S}$$
Condition for zero current through the galvanometer in a bridge circuit.
📖 Physics 📚 Current Electricity

Cyclotron Frequency

Physics → Magnetism → Moving Charges And Magnetism → Motion in B-Field
$$f = \frac{qB}{2\pi m}$$
Frequency of a charged particle revolving in a perpendicular magnetic field.
📖 Physics 📚 Moving Charges And Magnetism

Self Inductance (Solenoid)

Physics → Magnetism → Electromagnetic Induction → Inductance
$$L = \frac{\mu_0 N^2 A}{l}$$
Property of a coil to oppose changes in current through itself.
📖 Physics 📚 Electromagnetic Induction

RMS Voltage (AC)

Physics → Electricity → Alternating Current → AC Basics
$$V_{rms} = \frac{V_0}{\sqrt{2}} \approx 0.707 V_0$$
The effective value of an alternating voltage.
📖 Physics 📚 Alternating Current

Impedance (LCR Series)

Physics → Electricity → Alternating Current → AC Circuits
$$Z = \sqrt{R^2 + (X_L - X_C)^2}$$
Total effective resistance of a series LCR circuit.
📖 Physics 📚 Alternating Current

Bohr's Quantization Condition

Physics → Modern Physics → Atoms → Atomic Models
$$mvr = \frac{nh}{2\pi}$$
Angular momentum of an electron in a stable orbit is quantized.
📖 Physics 📚 Atoms

Mass-Energy Equivalence

Physics → Modern Physics → Nuclei → Mass Defect
$$E = \Delta m c^2$$
Energy released due to conversion of mass.
📖 Physics 📚 Nuclei

Newton's Second Law (Force)

Physics → Mechanics → Force and Laws of Motion → Laws of Motion
$$F = m \times a$$
Force is equal to the product of mass and acceleration.
📖 Physics 📚 Force and Laws of Motion

Acceleration due to Gravity

Physics → Mechanics → Gravitation → Free Fall
$$g = \frac{G M}{R^2}$$
The acceleration experienced by an object falling freely near a planet's surface.
📖 Physics 📚 Gravitation

Potential Energy (Gravitational)

Physics → Mechanics → Work and Energy → Energy
$$E_p = mgh$$
Energy possessed by a body by virtue of its position above the ground.
📖 Physics 📚 Work and Energy

Frequency and Time Period

Physics → Waves → Sound → Wave Properties
$$\nu = \frac{1}{T}$$
Relationship between the time for one cycle and the number of cycles per second.
📖 Physics 📚 Sound
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