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WorksheetsMagnetic fields vs Electric fields
Total questions: 17
Worksheet time: 9mins
What is the symbol for electric field strength?
B
E
F
T
What is the unit for electric field strength?
T
E
Fq
V/m
What is the symbol for magnetic field strength?
T
M
B
F
What is the unit for magnetic field strength?
T
M
B
F
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
Where would you find a uniform magnetic field?
around a magnet
between two like poles of 2 magnets
inside a coil that carries a current
around a wire that carries a current
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
Describe the path of a charge moving at right angles in a magnetic field
straight (unchanged)
parabola
circular
sinusoidal
How do you predict the direction of the force on a + charge moving at right angles in a magnetic field?
with the right hand slap rule
left hand slap rule
right hand grip rule
left hand grip rule
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
Describe the path of a charge moving at right angles in an electric field
straight (unchanged)
parabola
circular
sinusoidal
Moving a conductor at right angles to a magnetic field causes
electrons to move right angle to the field and in the same direction as the motion
protons to move at right angles to the field and at right angles to the motion
electrons to move right angle to the field and at right angles to the motion
protons to move right angle to the field and in the same direction as the motion
Which equation do you use for calculating the voltage induced?
V = E/q
V = IR
V = d/t
V = BvL
Which equation do you use for calculating the Force on a DC motor?
F = BIL
F = Eq
F = Bqv
F=ma
How could you increase the strength of a magnetic field in a coil?
use an iron core, decrease the number of turns of wire
increase the voltage and decrease the number of turns
use an iron core and increase the size of the current
increase the number of turns and decrease the current
