Welcome to the Quiz!
This quiz contains 8 questions from a mix of 1 subtopics.
Which of the following is true about magnetic field lines around a permanent magnet?
they do not form closed loops
they emerge from the south pole and enter the north pole
they emerge from the north pole and enter the south pole
they are not related to the strength of the magnetic field
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What does the closeness of magnetic field lines indicate?
the strength of the magnetic field
the distance from the magnetic pole
the type of material causing the magnetic field
the direction of the magnetic field
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Which of the following is a characteristic of a uniform magnetic field?
parallel lines that are evenly spaced
concentric circles around a wire
rapidly diminishing external field
field lines that converge at the poles
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What shape does the magnetic field form around a current-carrying straight wire?
zig-zag patterns
concentric circles
ellipses
parallel lines
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Which rule is used to determine the direction of the magnetic field around a current-carrying wire?
fleming's right-hand rule
left-hand grip rule
right-hand grip rule
fleming's left-hand rule
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Which of the following factors can increase the strength of the magnetic field inside a solenoid?
decreasing the length of the solenoid
decreasing the number of turns in the coil
increasing the current flowing through the coil
increasing the cross-sectional area of the coil
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What is the relationship between the number of turns in a coil and the strength of its magnetic field?
exponentially related
inversely proportional
no relationship
directly proportional
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Which of the following is not a way to increase the magnetic field strength inside a coil or solenoid?
increasing the current flowing through the coil
increasing the resistance of the wire
decreasing the cross-sectional area of the coil
adding more turns to the coil
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