2/3/26, 6:52 PM Unit 1 Exam: Electrical Currents and Magnetic Fields
Review Mode Reviewing #1 - 2/1/2026, 11:42:37 AM #
Unit 1 Exam: Electrical Currents And Magnetic Fields
95 19 2/1/2026, 1:19:31 AM 2/1/2026, 11:42:37 AM
out of 100% out of 20 STARTED SUBMITTED
PERCENTAGE POINTS EARNED
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Question 1 m
What is the relationship between an electric current and a magnetic field?
An electric current creates a magnetic field.
An electric current blocks a magnetic field.
An electric current weakens a magnetic field.
An electric current destroys a magnetic field.
Question 2 @
Which choice describes an electric current?
the transfer of heat through a wire, driven by a connected battery
the gathering of electrons that create a positive charge in a battery
the flow of charged particles through a wire, caused by a battery
the movement of positive charge particles inside the battery
Question 3 @
Explain how the strength of the magnetic field around a wire changes with the electric current and the distance from the wire. Provide an example to support your explanation.
Type your answer in the box.
Word Limit
Question 4 @
https://primaverahs.instructure.com/courses/18555/assignments/1339243?module_item_id=4378936 1/7
, 2/3/26, 6:52 PM Unit 1 Exam: Electrical Currents and Magnetic Fields
Match the type of current with its description.
Move one answer to each box.
T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T TSR SRR EEEEEE A
| 1
alternating current (AC) | 1
[ 1
b o o o e Em e N N N RN RN RN N M R R Em E Em R Em Em Em Em Em Em Em Em Em N N N N N N Em Em Em e Em =
T T T T T T T T T T T T T T T T T T T T T T T T E TR TR EEEEEE s A
| 1
direct current (DC) | 1
| 1
b o o o e e e e e e e e N R E E e mm Em Em Em Em Em mm e mm e e Em e mm -J
Question 5
Compare the magnetic field strength generated by single-loop and multi-loop coils. Explain how the number of loops in a coil influences the magnetic field's strength. Also describe how each loop contributes to the overall field.
Include an example in your explanation.
Word Limit
Question 6
Move the correct response to the box to complete the sentence.
A single-loop coil generates a relatively magnetic field.
Question 7
Which would most likely increase the magnetic field strength of a coil?
decreasing the spacing between the coil turns
increasing the spacing between the coil turns
increasing the distance between the coil and core
decreasing the number of layers of windings
https://primaverahs.instructure.com/courses/18555/assignments/1339243?module_item_id=4378936 27
Review Mode Reviewing #1 - 2/1/2026, 11:42:37 AM #
Unit 1 Exam: Electrical Currents And Magnetic Fields
95 19 2/1/2026, 1:19:31 AM 2/1/2026, 11:42:37 AM
out of 100% out of 20 STARTED SUBMITTED
PERCENTAGE POINTS EARNED
No attempts remain
Question 1 m
What is the relationship between an electric current and a magnetic field?
An electric current creates a magnetic field.
An electric current blocks a magnetic field.
An electric current weakens a magnetic field.
An electric current destroys a magnetic field.
Question 2 @
Which choice describes an electric current?
the transfer of heat through a wire, driven by a connected battery
the gathering of electrons that create a positive charge in a battery
the flow of charged particles through a wire, caused by a battery
the movement of positive charge particles inside the battery
Question 3 @
Explain how the strength of the magnetic field around a wire changes with the electric current and the distance from the wire. Provide an example to support your explanation.
Type your answer in the box.
Word Limit
Question 4 @
https://primaverahs.instructure.com/courses/18555/assignments/1339243?module_item_id=4378936 1/7
, 2/3/26, 6:52 PM Unit 1 Exam: Electrical Currents and Magnetic Fields
Match the type of current with its description.
Move one answer to each box.
T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T T TSR SRR EEEEEE A
| 1
alternating current (AC) | 1
[ 1
b o o o e Em e N N N RN RN RN N M R R Em E Em R Em Em Em Em Em Em Em Em Em N N N N N N Em Em Em e Em =
T T T T T T T T T T T T T T T T T T T T T T T T E TR TR EEEEEE s A
| 1
direct current (DC) | 1
| 1
b o o o e e e e e e e e N R E E e mm Em Em Em Em Em mm e mm e e Em e mm -J
Question 5
Compare the magnetic field strength generated by single-loop and multi-loop coils. Explain how the number of loops in a coil influences the magnetic field's strength. Also describe how each loop contributes to the overall field.
Include an example in your explanation.
Word Limit
Question 6
Move the correct response to the box to complete the sentence.
A single-loop coil generates a relatively magnetic field.
Question 7
Which would most likely increase the magnetic field strength of a coil?
decreasing the spacing between the coil turns
increasing the spacing between the coil turns
increasing the distance between the coil and core
decreasing the number of layers of windings
https://primaverahs.instructure.com/courses/18555/assignments/1339243?module_item_id=4378936 27
