Key fact Electrical current is the rate of flow ... Key fact 'Amps' is an abbreviation for 'amperes', the unit for current (also abbreviated as 'A') but the symbol for 'current' is 'I'.

Key fact Electrical current is the rate of flow ... Key fact 'Amps' is an abbreviation for 'amperes', the unit for current (also abbreviated as 'A') but the symbol for 'current' is 'I'.

Physics Current Electricity Class 12 Notes ... r is called resistivity. Current per unit area (taken normal to the current), I/A, is called current density and is denoted by j.

Explore how superconducting magnetic energy storage (SMES) and superconducting flywheels work, their applications in grid ...