GENERAL KNOWLEDGE

Detailed explanation-1: -The ampere, or amp, is the SI unit of electric current and represents the passage of electric charge over a surface at a rate of one coulomb per second. The ampere (symbol: A) is a standard international unit. An ammeter is a device used to measure electric current.

Detailed explanation-2: -The ampere per meter (A/m) is the measure for magnetic field strength, as defined by the International System of Units (SI). It is derived from the SI base units ampere and meter (or metre), both of which are constructed from the standard’s defining constants.