Question

Current from a battery is flowing through a straight conductor. Which rule helps to understand the direction of the magnetic field around the conductor.

• A. Fleming's right-hand rule
• B. Fleming's left-hand rule
• C. Clock rule
• D. Right-hand thumb rule

Answer 1

The correct option is B

Fleming's left-hand rule

The rule that helps to understand the direction of the magnetic field around a straight conductor is Right-hand thumb rule. In Right-hand thumb rule, the direction of the thumb indicates the direction of current flowing and finger encircling it gives the direction of the magnetic field.