Which of the following would decrease the magnetic field around a wire?
A) Decreasing the current (MY ANSWER)
B) reversing the poles of the wire
C) looping a section of the wire into a solenoid
D) increasing the current
Answers to the test are
1. A
2. B
3. A
3. B
5. C
6. C
7. A
8. B
9. C
10. A
11. B
12. A
13. B
14. True
I agree with you
Hi is right!
If you just want the answer to the question, the answer is A.
Wait Hi you put 4 as 3!!! you did
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2.
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3.
The correct answer is A) Decreasing the current. Decreasing the current in a wire would indeed decrease the magnetic field around it. To understand why, let's explain the concept behind it.
The magnetic field around a wire is generated by the flow of electric current through it. According to the right-hand rule, the direction of the magnetic field is perpendicular to both the direction of current flow and the direction of the wire.
The strength of the magnetic field is directly proportional to the current flowing through the wire. As the current increases, the magnetic field around the wire also increases. Conversely, when the current decreases, the magnetic field weakens.
To physically decrease the current in a wire, you can adjust the power source or modify the circuit connected to the wire. This can include reducing the voltage, changing resistance values, or disconnecting/switching off components in the circuit.
It is important to note that reversing the poles of the wire (answer B) would not decrease the magnetic field, but rather change its direction. Looping a section of the wire into a solenoid (answer C) and increasing the current (answer D) would both increase the magnetic field, so they are not the correct options for decreasing it.