Electromagnetic Induction Flashcards
Flux formula
Emf formula w.r.t flux
Emf formula w.r.t B L V with vector form
how to find the positive terminal of the emf induced in a wire
induced emf in loop by rotating in field
A—> area
Emf Formula if rotating rod in a Magnetic field
l represents displacement lentgh
What to replace theta with if an area is rotating with omega angular speed
omega * t
induced electric field relation with flux or emf
are magnetic field lines closed ?!
yes
are electric field lines closed
no
whats eddy current??
Flux formula wrt L(inductance) and with current/time
coeff of inductance depends on
coeff of inductance for a circular coil
Energy of inductor formula
Energy by unit volume of inductor (E/V)
1/2 uknot * B^2
L formula for a solenoid
n—> number of turns/total lentgh
V—. volume enclosed by the solenoid
Mutual induction formula
Mutual induction constant is same / different for 2 coils for each other
same
Steps to find Mutual inductance:-
(a) consider current in which loop: big
(b) calculate Flux of which loop: small
(c) apply it to the flux= M.i formula to get M
Mutual induction formula of two co axial solenoids
mutual induction consant depends
Magnetic Force formula with BqV and vector form
Transformer works on concept ofStep up and step down difference
mutual induction
Step up and step down difference
does frequecy changes in transformer
Nopes it remains
V1,V2,N1,N2,I1,I2 relation(transformer)
effecience formula for a transformer
Inductor current decay formula, whats time constant! What the e^ stuff
Inductor current decay graph
time constant formula
τ = L/R
Inductor current growth formula, whats time constant! What the e^ stuff
Inductor current growth graph
what does inductor turns at t=0 and t=inf
how to find the positive terminal of the emf induced in a wire
