the rule that helps to determine the direction of magnetic field around a current carrying straight conductor is
Maxwell’s Right-Hand Thumb Rule
Answer: Maxwell’s Right-Hand Thumb Rule is a rule that helps to determine the direction of the magnetic field around a current carrying straight conductor. It is also known as the right-hand grip rule. This rule states that if you point your right thumb in the direction of the current flow in the conductor, then the direction in which your fingers curl represents the direction of the magnetic field lines around the conductor.
To apply Maxwell’s Right-Hand Thumb Rule, imagine holding the conductor in your right hand with your thumb pointing in the direction of the current. Your fingers will naturally curl around the conductor, indicating the direction of the magnetic field.
This rule is based on the principle that a magnetic field is created around a current-carrying conductor. The magnetic field lines form closed loops around the conductor, and their direction can be determined using Maxwell’s Right-Hand Thumb Rule.
By using this rule, we can easily determine the direction of the magnetic field in any given situation involving a current-carrying straight conductor. It is a simple and practical tool used in physics and electrical engineering to understand and analyze the behavior of magnetic fields.