Identification Flashcards

(39 cards)

1
Q

The law that describes the magnetic field produced at a point due to a small segment of a current-carrying conductor.

A

Biot-Savart Law

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2
Q

The force experienced by a moving charge in a magnetic field.

A

Magnetic Force / Lorentz Force

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3
Q

The process by which a changing magnetic field generates an electric current or EMF in a conductor.

A

Magnetic Induction

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4
Q

A region around a moving charge or a magnet where a magnetic force is exerted.
A vector quantity represented by B.
Measured in Tesla (T)

A

Magnetic Field

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5
Q

The splitting of white light into different colors.

A

Dispersion of Light

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6
Q

Occurs when light is completely reflected at a boundary.

A

Total Internal Reflection

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7
Q

The bending of light when it passes from one medium to another.

A

Refraction

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8
Q

The process of restricting the vibrations of light waves to a single plane.

A

Polarization of Light

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9
Q

States that moving clocks run slower relative to a stationary observer.

A

Time Dilation

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10
Q

States that objects in motion appear shorter along the direction of motion.

A

Length Contraction

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11
Q

Electric current that periodically reverses direction.

A

Alternating Current (AC)

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12
Q

Electric current that flows in one direction with a constant voltage.

A

Direct Current (DC)

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13
Q

A circuit consisting of an inductor (L) and a capacitor (C) connected together.

A

LC Circuit

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14
Q

The ability of an inductor to store energy in a magnetic field.

A

Inductance

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15
Q

The opposition an inductor offers to changes in current in an AC circuit.

A

Inductive Reactance

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16
Q

The bending of light as it passes from one medium to another with a different refractive index.

A

Snell’s Law

17
Q

The point where two or more waves overlap, affecting the resulting wave amplitude.

18
Q

When two waves are in phase, their amplitudes add up, creating a stronger wave.

A

Constructive Interference

19
Q

When two waves are out of phase, they cancel each other out.

A

Destructive Interference

20
Q

A passive electrical component that stores energy in a magnetic field when electrical current flows through it.

21
Q

The force between two charges is directly proportional to the product of their charges and inversely proportional to the square of the distance between them

A

Coulomb’s law

22
Q

Defines the relationship between voltage current and resistance (V=IR)

23
Q

The combined force on a charged particle due to electric and magnetic fields

A

Lorentz Force

24
Q

The ability of a material to support the formation of a magnetic field is called ______

25
The speed of an electromagnetic wave in a medium depends on its ______ and _______
permittivity and permeability
26
States that the direction of an induced current always opposes the change in magnetic flux that caused it.
Lenz's law
27
Measures the total magnetic field passing through a given surface.
Magnetic Flux
28
Maximized when the magnetic field is parallel to the surface and minimized when perpendicular
Magnetic Flux
29
Occurs when a magnetic field changes over time or when a conductor moves through a magnetic field.
Induced EMF (ε)
30
The property of a coil to oppose changes in current by inducing an emf in itself
Self-inductance
31
Occurs when a changing current in one coil induces an emf in another nearby coil
Mutual Inductance
32
SI unit of magnetic flux
Weber (Wb)
33
An electric current that periodically reverses direction. Voltage oscillates in a sinusoidal pattern.
Alternating Current (AC)
34
Cannot be easily transformed to different voltage levels. Flows in one direction with a constant voltage.
Direct Current (DC)
35
A resonant circuit or tank circuit. Consists of an inductor (L) and a capacitor (C) connected together.
LC Circuits
36
Energy oscillates between the electric field in the capacitor and the magnetic field in the inductor.
LC Circuits
37
Used to increase or decrease AC voltage in power transmission.
Transformer
38
Initially unpolarized light passes through a polarizer, its intensity is reduced by half.
MALUS’S LAW AND POLARIZATION
39
Speed of light in a vacuum
c ≈ 3.00 × 10^8 m/s