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WorksheetsChapter 4 Magnetism
Total questions: 24
Worksheet time: 24mins
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
A straight wire carries a current into the paper. What is the direction of the magnetic field at point P?
Points to the right
Points to the left
Points to the top of the page
Points to the bottom of the page
What does the following represent?
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙⊙
A crowd with binoculars
A bunch of coaxial cables
Uniform magnetic field directed into the screen away from you
Uniform magnetic field directed out of your screen at you
A moving charge produces a __________ around it
current
magnetic field
force
energy
Find the direction of the magnetic force on positive charge q.
Into the screen
Out of the screen
Right
Left
Find the direction of the magnetic force on positive charge q.
Down
Into the screen
Out of the screen
Up
Which direction will the force act on the current (to the right) shown above?
Into the page
Out of the page
Up the page
Down the page
What do the lines around this magnet represent?
North Pole
South Pole
Magnetic Declination
Magnetic Field
The strongest part of a magnet is...
the bars.
the force field.
the poles.
the middle.
How can a wire become magnetic?
point it north
add a resistor
heat it up
run a current through it
Two long, parallel wires each carry the same
current 𝐼 in the same direction. What is the total
magnetic field at the point 𝑃 midway between the
wires?
Zero
Directed into the page
Directed out of the page
Directed to the left
An electron and a proton are both initially moving with the same speed and in the same direction at 90˚ to the same uniform magnetic field. They experience magnetic forces, which are initially:
identical
equal in magnitude but opposite in direction
in the same direction and differing in magnitude
in opposite directions and differing in magnitude
A wire carries a current, creating a magnetic field around itself as shown in figure above. The current in the wire is ...
directed to the right
directed to the left
equal to the magnetic field
In the same direction as the magnetic field
An electric current 𝐼 passes through a wire with a semicircular section of radius 𝑎 as shown below. What is the direction of the magnetic field at the point P?
Out of the page
Into the page
upward
downward
An electron is moving north in a region where the magnetic field is to the south. The magnetic force exerted on the electron is:
What does the direction of the pointing fingers mean in this picture?
the direction of the voltage
the rotation of the wire
the direction of the magnetic field
the direction of the current
A wire has a current travelling through towards the left. If it is in a magnetic field directed downward, what direction will the wire experience a force?
Up
down
out of page
into page
Two long parallel wires carry currents in opposite directions. The top wire carries a current to the left, while the bottom wire carries a current to the right. The wires are not touching. Do the wires attract each other or repel?
Attract
Repel
Describe the direction the charge gets deflected at in the diagram above
up
down
left
right
