What is the basic unit of inductance?

What is the basic unit of inductance?

• A. Inductor
• B. Henry
• C. Neutron
• D. Ohm

Answer: (B)

Inductance is the property of a circuit that resists changes in current because of its magnetic field linkage, and the unit used to measure that property is the henry. The henry is defined by the relation V = L di/dt: if the current in a circuit changes at a rate of one ampere per second, the induced voltage is one volt, and that amount of inductance is one henry. So, one henry is the inductance that produces one volt of emf for a current change of one ampere per second. The henry is an SI unit (symbol H). An inductor is the component that provides inductance, not the unit; neutron is a particle, and ohm is the unit of resistance.

Inductance is the property of a circuit that resists changes in current because of its magnetic field linkage, and the unit used to measure that property is the henry. The henry is defined by the relation V = L di/dt: if the current in a circuit changes at a rate of one ampere per second, the induced voltage is one volt, and that amount of inductance is one henry. So, one henry is the inductance that produces one volt of emf for a current change of one ampere per second. The henry is an SI unit (symbol H). An inductor is the component that provides inductance, not the unit; neutron is a particle, and ohm is the unit of resistance.