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What is the effect of increasing the distance from a long straight current-carry

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Question: What is the effect of increasing the distance from a long straight current-carrying wire on the magnetic field strength?

Options:

  1. It increases
  2. It decreases
  3. It remains constant
  4. It becomes zero

Correct Answer: It decreases

Solution: 

According to the Biot-Savart Law, the magnetic field strength decreases with increasing distance from the wire.

What is the effect of increasing the distance from a long straight current-carry

Practice Questions

Q1
What is the effect of increasing the distance from a long straight current-carrying wire on the magnetic field strength?
  1. It increases
  2. It decreases
  3. It remains constant
  4. It becomes zero

Questions & Step-by-Step Solutions

What is the effect of increasing the distance from a long straight current-carrying wire on the magnetic field strength?
Correct Answer: Magnetic field strength decreases.
  • Step 1: Understand that a long straight wire carrying an electric current creates a magnetic field around it.
  • Step 2: Recognize that the strength of this magnetic field is strongest close to the wire.
  • Step 3: Learn that as you move further away from the wire, the magnetic field strength gets weaker.
  • Step 4: Remember that this relationship is described by the Biot-Savart Law, which states that the magnetic field strength decreases with distance.
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