Welcome to the Quiz!
This quiz contains 6 questions from a mix of 1 subtopics.
Which of the following is correct?
When an electrical current flows through a material, a magnetic field is always produced
When an electrical current flows through a material, a magnetic field is produced only if that material is a metal
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force / current / magnetic
The right hand rule can tell us the direction of the magnetic field induced by a flowing current.
In the right hand rule, the thumb is placed following the same direction as the is travelling, and the fingers are the curled in the direction of the field lines.
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The above diagram shows two wires with current flowing to the right.
Using the right hand grip rule, which of the two shows the correct direction of the magnetic field lines, A or B?
A
B
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The above object can be called:
(Select all that apply)
A solenoid
A trapezoid
A cuboid
An electromagnet
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In an electromagnet, a current is required to produce the magnetic field.
When the current is switched off, the magnetic field:
Disappears
Remains the same
Changes direction
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Describe the four ways to increase the strength of an electromagnet.
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