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Worksheets5.4 Learning Magnetic Field and Force I
Total questions: 13
Worksheet time: 26mins
How can we produce magnetic field?
By bar magnet and wires with electricity.
only bar magnet
only wires with elelctricity
only electromagnets
The magnetic needle of the compass indicates to:
direction of magnetic field lines (from N to S)
direction of magnetic field lines (from S to N)
Where is the magnetic North pole of the Earth?
in the geographic South pole.
in the geographic North pole.
The magnetic needle of the compass is pointing to the:
Magnetic South pole. (magnetic field lines coming from magnetic N and going into magnetic S)
Magnetic North pole. (magnetic field lines coming from magnetic N and going into magnetic S)
The magnetic field is a region around a magnetic material or a moving electrical charge within which the ....
force of magnetism acts.
force of magnetism is absent.
electric field strength acts.
electric field strength is absent.
The symbol for Electric field Strength is ... and its unit is ...
B and its unit is T
T and its unit is B
B and its units is NC-1
The symbol for Magnetic field Strength is ... and its unit equals to ...
a vector quantity and its unit Tesla equals to 1 Weber per meter square.
a vector quantity and its unit Tesla equals to 1 Weber times meter square.
a scalar quantity and its unit Tesla equals to 1 Weber per meter square.
a scalar quantity and its unit Tesla equals to 1 Weber times meter square.
Where is the direction of the magnetic field inside the bar magnet?
to the right (from N to S)
to the left (from S to N)
There is no magnetic field.
Where do we have more magnetic field strength in this bar magnet?
we have more magnetic flux density closer to the poles.
we have more magnetic flux closer to the poles.
we have more magnetic flux density away from the poles.
we have more magnetic flux away from the poles.
In a current-carrying wire, we use ...
the right hand and the thumb indicates the conventional current direction.
the right hand and the thumb indicates the flow of electrons.
the left hand and the thumb indicates the conventional current direction.
the left hand and the thumb indicates the flow of electrons.
In a current-carrying wire, we use ...
a dot to represent that conventional current is out of the page and its magnetic field is counterclockwise.
a dot to represent that electron flow is out of the page and its magnetic field is counterclockwise.
a dot to represent that conventional current is out of the page and its magnetic field is clockwise.
a dot to represent that electron flow is out of the page and its magnetic field is clockwise.
A solenoid is made of ...
series of linked flat circular coils.
a single flat and circular coils.
a electromagnet.
In this solenoid ...
the right hand's thumb represents the North magnetic pole that is going to the left.
the left hand's thumb represents the North magnetic pole that is going to the left.
