(a) Show that the energy required to build up the current in a coil of inductance is…
PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
(a) Show that the energy required to build up the current I in a coil of inductance L is 21LI2.
(b) Considering the case of magnetic field produced by air-filled current carrying solenoid, show that the magnetic energy density of a magnetic field B is 2μ0B2.
a. Show that the energy required to build up the current I in a coil of inductance L is 21LI2.
b. Considering the case of magnetic field produced by air-filled current carrying solenoid, show that the magnetic energy density of a magnetic field B is 2μ0B2.