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 are not related to the strength of the magnetic field
they emerge from the south pole and enter the north pole
they do not form closed loops
they emerge from the north pole and enter the south pole
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What does the closeness of magnetic field lines indicate?
the type of material causing the magnetic field
the distance from the magnetic pole
the direction of the magnetic field
the strength of the magnetic field
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Which of the following is a characteristic of a uniform magnetic field?
concentric circles around a wire
field lines that converge at the poles
rapidly diminishing external field
parallel lines that are evenly spaced
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What shape does the magnetic field form around a current-carrying straight wire?
parallel lines
concentric circles
ellipses
zig-zag patterns
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Which rule is used to determine the direction of the magnetic field around a current-carrying wire?
left-hand grip rule
fleming's left-hand rule
right-hand grip rule
fleming's right-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
increasing the current flowing through the coil
increasing the cross-sectional area of the coil
decreasing the number of turns in 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
directly proportional
no relationship
inversely 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
adding more turns to the coil
increasing the resistance of the wire
decreasing the cross-sectional area of the coil
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