Question

What are the definitions to the following words:
- Faraday's law
- Gauss
- Magnetism
- Magnetic field
- Voltage

Simplify the definitions as best as possible.

Answer 1

- Faraday's law
Changing the magnetic flux through a loop creates an electric voltage (emf) in that loop. In plain terms: move a magnet near a coil or change the field, and you induce a voltage and possibly a current.

- Gauss
A gauss (G) is a unit for magnetic flux density (the strength of a magnetic field) in the cgs system. 1 gauss = 10⁻⁴ tesla.

- Magnetism
The physical phenomenon by which certain materials (or moving electric charges) attract or repel each other and create magnetic effects. It’s the reason magnets stick to iron and why electric currents produce magnetic fields.

- Magnetic field
The region around a magnet or moving charges where magnetic forces act; represented by a vector (often called B) that shows the direction and strength a magnetic force would have. Field lines point from north to south outside a magnet.

- Voltage
The electric potential difference between two points — think of it as electrical “pressure” that can push charges through a circuit. Measured in volts (1 V = 1 joule per coulomb).