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If the current in a wire is doubled, how does the magnetic field at a point 5 cm
Practice Questions
Q1
If the current in a wire is doubled, how does the magnetic field at a point 5 cm away from the wire change?
It doubles
It quadruples
It remains the same
It halves
Questions & Step-by-Step Solutions
If the current in a wire is doubled, how does the magnetic field at a point 5 cm away from the wire change?
Steps
Concepts
Step 1: Understand that a wire carrying current creates a magnetic field around it.
Step 2: Know that the strength of the magnetic field depends on the amount of current flowing through the wire.
Step 3: Remember the Biot-Savart Law, which states that the magnetic field is directly proportional to the current.
Step 4: If the current in the wire is doubled, it means there is now twice as much current flowing.
Step 5: Since the magnetic field is directly proportional to the current, if the current is doubled, the magnetic field will also double.
Step 6: Conclude that at a point 5 cm away from the wire, the magnetic field will be twice as strong as it was before.
No concepts available.
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