
Understanding Magnetic Fields

Quiz
•
Others
•
9th - 12th Grade
•
Easy
Elias G/yes
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relationship between current and magnetic field strength?
There is no relationship between current and magnetic field strength.
Magnetic field strength is inversely proportional to the electric current.
Magnetic field strength is directly proportional to the electric current.
Magnetic field strength decreases as electric current increases.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the distance from a current-carrying wire affect the magnetic field?
The magnetic field strength decreases as the distance from the wire increases.
The magnetic field remains constant regardless of the distance from the wire.
The magnetic field only exists at a fixed distance from the wire.
The magnetic field strength increases as the distance from the wire increases.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens to the magnetic field strength if the current is doubled?
The magnetic field strength becomes zero.
The magnetic field strength remains the same.
The magnetic field strength doubles.
The magnetic field strength decreases by half.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which direction does the magnetic field line point around a straight conductor?
The magnetic field lines point in concentric circles around the conductor, following the right-hand rule.
The magnetic field lines point straight away from the conductor.
The magnetic field lines form a square pattern around the conductor.
The magnetic field lines point in a straight line along the conductor.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for calculating the magnetic field around a long straight conductor?
B = (μ₀ * I) / (4 * π * r)
B = (I * r) / (μ₀ * 2 * π)
B = (μ₀ * I * r) / (2 * π)
B = (μ₀ * I) / (2 * π * r)
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the type of material surrounding the wire influence the magnetic field?
The magnetic field is always stronger in vacuum than in any material.
Only conductive materials can influence the magnetic field.
The material has no effect on the magnetic field.
The surrounding material can enhance or weaken the magnetic field depending on its magnetic properties.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the effect of increasing the wire's diameter on the magnetic field strength?
Decreasing the wire's diameter increases the magnetic field strength.
Increasing the wire's diameter has no effect on the magnetic field strength.
Increasing the wire's diameter decreases the magnetic field strength.
Increasing the wire's diameter can increase the magnetic field strength.
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