What is the effect of doubling the distance from a long straight wire on the magnetic field strength?
Practice Questions
1 question
Q1
What is the effect of doubling the distance from a long straight wire on the magnetic field strength?
It doubles the magnetic field strength
It halves the magnetic field strength
It quadruples the magnetic field strength
It has no effect on the magnetic field strength
According to the Biot-Savart Law, the magnetic field strength is inversely proportional to the distance, so doubling the distance halves the magnetic field strength.
Questions & Step-by-step Solutions
1 item
Q
Q: What is the effect of doubling the distance from a long straight wire on the magnetic field strength?
Solution: According to the Biot-Savart Law, the magnetic field strength is inversely proportional to the distance, so doubling the distance halves the magnetic field strength.
Steps: 5
Step 1: Understand that a long straight wire creates a magnetic field around it.
Step 2: Know that the strength of this magnetic field depends on the distance from the wire.
Step 3: Learn about the Biot-Savart Law, which tells us how the magnetic field strength changes with distance.
Step 4: Remember that the magnetic field strength is inversely proportional to the distance. This means that as the distance increases, the magnetic field strength decreases.
Step 5: If you double the distance from the wire, the magnetic field strength becomes half of what it was before.
