Electric Field Calculator [iPad]

Electric Field Calculator is a physics/math calculator used to find charge, distance, and electric field quickly and easily.

Features:
- Instant calculation
- Results are copyable to other apps
- Formulas are included as references
- Supports up to 16 decimal places
- Supports various units for each input

The electric field is defined as the electric force per unit charge. The direction of the field is taken to be the direction of the force it would exert on a positive test charge. The electric field is radially outward from a positive charge and radially inward toward a negative point charge.

The units of the electric field in the SI system are newtons per coulomb (N/C), or volts per meter (V/m). Electric fields are created by electric charges and by time-varying magnetic fields. They are important in many areas of physics and are exploited practically in electrical technology. On an atomic scale, the electric field is responsible for the attractive force between the atomic nucleus and electrons that hold atoms together, as well as the forces between atoms that cause chemical bonding. The electric field and the magnetic field together form the electromagnetic force, one of the four fundamental forces of nature.

Electric Field Formula:

E = k * Q / r²

where:
E - magnitude of electric field
r - distance from the point
Q - charge point
k - Coulomb's constant k = 1/(4 * π * ɛ0) = 8.9876 * 10^9 N * m² / C²

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