Term
| electrical potential energy |
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Definition
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Term
| electrical potential difference |
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Definition
WE = qEd
DUE = - WE = -qEd |
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R = r l
A
r = resisitivity
l = length
A = cross-sectional area |
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Term
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Definition
Current constant: Itotal = I1 = I2 =
Potential adds up: Vtotal = V1 + V2 +
Resistance adds up: Rtotal = R1 + R2 +
Kirchoff's Second law: conservation of charge |
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Term
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Definition
potential is constant: Vtotal = V1 = V2 =
Current adds up: Itotal = I1 + I2 +
Resistance adds reciprocal: 1/Rtotal = 1/R1 + 1/R2 +
Kirchoff's 1st Law: conservation of energy |
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Definition
P = IV or P = W/t
P = I2R or P = V2/R |
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Term
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Definition
W = Pt or W = IVt
Joule's Law Q (W) = I2Rt |
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Term
| Potential difference available in a circuit |
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Definition
V = Emf - Ir
total potential - potential lost to battery's internal resistance (r) |
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Definition
Uc = 1/2QV or Uc = 1/2CV2
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Term
| Force on charge in magnetic field |
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Definition
F = qvb sin q
F = b I l sin q |
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Definition
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Definition
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Term
| Electromotive force (Emf) |
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Definition
Emf = -N Df/Dt = -bA/t = -blv
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Q
Joules or Calories
J or cal |
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Term
Permitivity of a Vacuum
(SU) |
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Term
| Force on wire moving through a magnetic field |
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Definition
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Term
| Right Hand Rule in a current |
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Definition
Emf = βlv
Force in the direction of I, thumb.
velocity, pointer finger.
Magnetic field, middle, index, and pinky fingers. |
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Term
Movement of charge through a magnetic field
(Right Hand Rule) |
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Definition
F = qvβ
Direction of force, direction of palm
Direction of charge and velocity, thumb
magnetic field, fingers |
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Term
Force in a wire carrying current in a magnetic field
(Right Hand Rule) |
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Definition
F = βIl
direction of current, thumb
Direction of force, direction of palm
direction of magnetic field, fingers |
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Term
Current generating magnetic field
(Right Hand Rule) |
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Definition
Current along wire, direction of thumb
Magnetic field, wraps around wire, direction of fingers |
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Term
| Using Magnetic Force to find centripital force of an orbiting particle |
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Definition
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Term
| Setting the force of a charge moving through a magnetic field equal to the force of charge moving though an electric field to find velocity. |
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Definition
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Term
| Finding the mass of an ion using the centripital force set equal to a charge moving though a magnetic field |
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Definition
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Term
| Force in a current carrying a wire |
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Definition
FB = ILβ
If L is at an angle: FB = ILβsinΘ |
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Term
| Magnetic field of long straight current-carrying wire |
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Definition
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