If the current in a wire is doubled, how does the magnetic field at a point near the wire change according to Ampere's Law?
Practice Questions
1 question
Q1
If the current in a wire is doubled, how does the magnetic field at a point near the wire change according to Ampere's Law?
It remains the same
It doubles
It quadruples
It halves
According to Ampere's Law, the magnetic field is directly proportional to the current, so doubling the current will double the magnetic field.
Questions & Step-by-step Solutions
1 item
Q
Q: If the current in a wire is doubled, how does the magnetic field at a point near the wire change according to Ampere's Law?
Solution: According to Ampere's Law, the magnetic field is directly proportional to the current, so doubling the current will double the magnetic field.
Steps: 5
Step 1: Understand that a wire carrying electric current creates a magnetic field around it.
Step 2: Know that Ampere's Law states that the strength of the magnetic field is directly related to the amount of current flowing through the wire.
Step 3: If the current in the wire is doubled, it means there is now twice as much current flowing.
Step 4: Since the magnetic field is directly proportional to the current, doubling the current will also double the strength of the magnetic field.
Step 5: Therefore, the magnetic field at a point near the wire will increase to twice its original strength.
