Magnetic Force pt. 2 Flashcards
What is B equal to?
B=μ0I/2pir
What is μ0 equal to?
μ0=4pi*10^(-7)
Unit of electromagnets
T, teslas
What is the source of B?
current, I
Right hand rule
put thumb into the charge and rotate hand
High current means
high speeds
What is the unit for current
I
What are the magnetic poles
North and South
current going into board
magnetic field goes in clockwise direction
current going out of board
magnetic field goes in counter clockwise direction
Magnetic Force
F(directional) = qv(directional) x B(directional)
Tesla equivalent
1N/A*m
Vector out of the board
⦿
Vector into the board
⨂
Shape of Magnetic Fields
Closed Loop
Source of Magnetic Fields
Moving Charges
what is a solenoid?
converts electrical energy to mechanical energy
equation for a solenoid?
B= μ0nI
What causes a magnetic feild
electron spin
what is the process of Fusion?
the process of combining molecules that occurs within a strong magnetic feild and releases energy
what is the formula for magnetic force?
Fm = qv(sinθ)B
what is the magnetic force on a particle if it’s not moving
zero
Which magnetic field is at Earth’s north pole
South
Which magnetic field is at Earth’s south pole
North
What is B for a semicircle
B=(µ(I))/4R
what is n equal to?
turns per meter
Vectors in orders: (i x j ; k x i ; j x k)
Positive vector direction
Vectors in orders: (j x i ; i x k ; k x j)
Negative vector direction
Fm of a charge with no velocity in the field
There is no force
Which values are perpendicular
Magnetic force and velocity
What are electromagnets?
A magnetic field created by an electric current
What is a cross product?
The multiplication of two vectors to get a third vector
What is the unit for current?
Amp
What is the unit for voltage?
Volt (V)
Solenoid integral to solve for magnetic field?
Integral of B*dL
Solution of solenoid integral?
B = μIn
