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PHYS202 Physics 2 w/ Calc > Magnetic Force pt. 2 > Flashcards

Magnetic Force pt. 2 Flashcards

1
Q

What is B equal to?

A

B=μ0I/2pir

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2
Q

What is μ0 equal to?

A

μ0=4pi*10^(-7)

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3
Q

Unit of electromagnets

A

T, teslas

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4
Q

What is the source of B?

A

current, I

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5
Q

Right hand rule

A

put thumb into the charge and rotate hand

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6
Q

High current means

A

high speeds

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7
Q

What is the unit for current

A

I

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8
Q

What are the magnetic poles

A

North and South

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9
Q

current going into board

A

magnetic field goes in clockwise direction

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10
Q

current going out of board

A

magnetic field goes in counter clockwise direction

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11
Q

Magnetic Force

A

F(directional) = qv(directional) x B(directional)

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12
Q

Tesla equivalent

A

1N/A*m

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13
Q

Vector out of the board

A

⦿

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14
Q

Vector into the board

A

⨂

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15
Q

Shape of Magnetic Fields

A

Closed Loop

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16
Q

Source of Magnetic Fields

A

Moving Charges

17
Q

what is a solenoid?

A

converts electrical energy to mechanical energy

18
Q

equation for a solenoid?

A

B= μ0nI

19
Q

What causes a magnetic feild

A

electron spin

20
Q

what is the process of Fusion?

A

the process of combining molecules that occurs within a strong magnetic feild and releases energy

21
Q

what is the formula for magnetic force?

A

Fm = qv(sinθ)B

22
Q

what is the magnetic force on a particle if it’s not moving

A

zero

23
Q

Which magnetic field is at Earth’s north pole

A

South

24
Q

Which magnetic field is at Earth’s south pole

A

North

25
Q

What is B for a semicircle

A

B=(µ(I))/4R

26
Q

what is n equal to?

A

turns per meter

27
Q

Vectors in orders: (i x j ; k x i ; j x k)

A

Positive vector direction

28
Q

Vectors in orders: (j x i ; i x k ; k x j)

A

Negative vector direction

29
Q

Fm of a charge with no velocity in the field

A

There is no force

30
Q

Which values are perpendicular

A

Magnetic force and velocity

31
Q

What are electromagnets?

A

A magnetic field created by an electric current

32
Q

What is a cross product?

A

The multiplication of two vectors to get a third vector

33
Q

What is the unit for current?

A

Amp

34
Q

What is the unit for voltage?

A

Volt (V)

35
Q

Solenoid integral to solve for magnetic field?

A

Integral of B*dL

36
Q

Solution of solenoid integral?

A

B = μIn

PHYS202 Physics 2 w/ Calc (9 decks)

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