Edexcel Electric & Magnetic Fields Questions- A level

What does the following represent?

⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗

⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗

⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗⊗

• Multiplied by a billion

• A piece of modern art

• Uniform magnetic field directed into the screen away from you

• Uniform magnetic field directed out of your screen at you

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the symbol for electric field strength?

• B

• E

• F

• T

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NGSS.HS-PS2-4

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What is the unit for electric field strength?

• T

• E

• Fq

• V/m

What is the unit for magnetic field strength?

• T

• M

• B

• F

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

Where would you find a uniform electric field?

• around a single charge

• between two charged metal plates

• inside a coil that carries a current

• around a magnet

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NGSS.HS-PS2-5

How could you increase the strength of an electric field?

• use an iron core, increase the number of turns of wire

• increase the voltage and increase the distance

• use an iron core and increase the current

• increase the voltage and decrease the distance

How do you calculate the force on a charge inside an electric field?

• field strength x charge

• field strength / charge

• charge / field strength

• field strength x current

How would you calculate the force on a moving (at right angles) charge in magnetic field?

• F = BIL

• F = Bqv

• F = Eq

• This is no force

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

Describe the path of a charge moving at right angles in a magnetic field

• straight (unchanged)

• parabola

• circular

• sinusoidal

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NGSS.HS-PS2-5

NGSS.HS-PS3-5

How do you predict the direction of the force on a + charge moving at right angles in an electric field?

• parallel but in the opposite direction to the field lines

• right angles to the field lines and the direction of motion

• parallel but in the same direction as the field lines

• right angles to the field lines and parallel to the motion