# Electromagnetism

• Ampère's Law - Ampère's Law connects the integrated magnetic field around a closed loop to the electric current passing through the loop. This function provides a simple evaluation of this principle.
• Antenna Gain - Antenna gain measures the ratio between the power transmitted in the direction of peak radiation and that of an isotropic source, in decibels.
• Capacitance of a Parallel Plate Capacitor - Calculate the capacitance of a parallel plate capacitor using its plate area, the distance between the plates, and the permittivity of the dielectric material.
• Dielectric Constant Calculation - Learn about the dielectric constant of a material and calculate it using the ratio of capacitance with and without the dielectric material.
• Displacement Current - The displacement current formula calculates the current density that arises from a changing electric field, complementing Ampère's Law in electromagnetism.
• Faraday's Law - Faraday's law of electromagnetic induction - calculate the induced electromotive force.
• Faraday's Law of Electromagnetic Induction - Faraday's Law of Electromagnetic Induction calculates the induced electromotive force in a circuit due to changes in magnetic flux.
• Faraday's Law of Induction - Faraday's Law of Induction states that the induced EMF in a closed loop is proportional to the rate of change of magnetic flux through the loop. This page explains how to calculate the EMF.
• Gauss's Law for Magnetism - Gauss's Law for Magnetism states that the magnetic flux through any closed surface is zero, described by the formula ΦB = B · dA.
• Hall Effect Voltage - The Hall effect voltage is a key phenomenon in magnetism and electronics. This equation calculates the Hall voltage generated across a conductor in a magnetic field.
• Joule's Law - Heating Effect of Electric Current - Learn about Joule's Law and the calculation of heat energy produced by an electric current through a resistor over a period of time. Understand the relationship between heat energy, electrical resistance, and time.
• Kirchhoff's Voltage Law (KVL) - Kirchhoff's Voltage Law (KVL) is used to calculate the sum of all voltages around a closed loop in an electrical circuit. Learn about the formula and its practical applications.
• Lorentz Force Calculation - Calculate the Lorentz force on a charge moving in a magnetic field. Essential for understanding electromagnetic field interactions. Parameters: charge (Coulombs), velocity (m/s), magnetic field (Tesla).
• Magnetic Dipole Moment - The magnetic dipole moment formula calculates the strength of a magnetic field produced by a current-carrying loop. Learn how to calculate the magnetic moment and its applications.
• Magnetomotive Force (MMF) - The magnetomotive force (MMF) in a magnetic circuit is calculated by multiplying the current flowing through the coil by the reluctance of the material. This formula helps determine the potential for creating magnetic flux.
• Maxwell's Second Equation - Maxwell's second equation, describing the behavior of magnetic fields, stating that the total magnetic flux through a closed surface is zero.
• Microwave Cavity Resonant Frequency - Calculate the resonant frequency of a microwave cavity using the speed of light and the length of the cavity with this formula.
• Ohm's Law - Ohm's Law relates the current flowing through a conductor to the voltage and resistance, fundamental in electrical engineering.
• Time Constant of an RL Circuit - Calculate the time constant τ for an RL circuit, given the values of inductance L and resistance R. This is essential for understanding the current's rate of change in the circuit.
• Transformer Turns Ratio - Learn about the transformer turns ratio and how it influences the voltage levels between the primary and secondary coils of a transformer.