Practice Magnetic Field Due To A Long Straight Wire (3.2.3) - Magnetic Effect of Current and Magnetism

Practice: Magnetic Field Due to a Long Straight Wire

Lesson 3.2.3Magnetic Effect of Current and Magnetism

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8 questions

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2 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What does the formula B = (μ₀I)/(2πr) represent?
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Identify the variables in the formula.
Question 2.
According to the right-hand rule, if the current flows upward, which direction do the magnetic field lines circulate?
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Think about how your fingers would curl.
3Question 3.
What is the formula for the magnetic field due to a long straight wire?
- B = μ₀I/(2πr)
- B = 2πr/μ₀I
- B = 4πr²/μ₀I
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Recall the formula discussed in class.
4Question 4.
True or False: The magnetic field intensity increases as the distance from the wire increases.
- True
- False
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Refer back to the relationship defined in the formula.
Question 5.
A long straight wire carries a current of 10 A. Calculate the magnetic field strength at a point 1 meter directly above the wire.
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Don't forget to simplify and use the constant accurately.
Question 6.
Two parallel wires are 0.5 meters apart, with both carrying a current of 3 A in the same direction. Describe the interaction of their magnetic fields.
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Visualize how the right-hand rule applies to understand their interaction.

4 more questions in this section. Enroll free to practise them all.