Font size
WorksheetsElectromagnetic Induction HWK
Total questions: 12
Worksheet time: 9mins
Match the following
θ
Angle to the normal of the surface
B
Magnetic flux density
A
Surface area
Φ
Magnetic flux
Magnetic flux is measured in
teslas
coulombs
webers
farads
Can you produce current in a wire with a magnet that is sitting still?
Yes; having a magnet near a wire is enough to excite the electrons
No; the magnetic field has to be changing to excite the electrons
No; magnets cannot create electricity
Complete the following equation:
(a) = AB cosθ
Name the following law: A changing magnetic field creates an electric current in a coil.
Ampere's Law
Faraday's Law
Lenz's Law
Coulomb's Law
NΦ is also called?
Solenoid flux
The flux
Flux linkage
I don't give any flux.
Please complete Faraday's Law:
(a) in = (b) N (c) / Δ (d)
Please complete Faraday's Law:
(a) in = Δ( (b) (c) (d) ) / Δ (e)
Which of these is LENZ'S LAW
the direction of the induced emf is always in the opposite direction to the applied emf
the direction of the induced emf is always opposing the change that produced it
the direction of the induced emf is always in the same direction to the applied emf
the direction of the induced emf is always increasing the change that produced it
WHEN A BAR MAGNET MOVES AWAY FROM SOLENOID,MAGNETIC FLUX (a) .
WHEN THE STRAIGHT CONDUCTOR BAR MOVES TO THE LEFT IN A UNIFORM MAGNETIC FIELD, MAGNETIC FLUX ________
DOES NOT CHANGE
DECREASES
INCREASES
IS INFINITIY
WHEN THE SOLENOID FALLS TOWARDS THE STATIONARY MAGNET BAR, MAGNETIC FLUX _______.
BECOME CONSTANT
BECOME ZERO
INCREASES
DECREASES
