The diagram shows a wire, carrying a current 'I', placed between the poles of a magnet. In which direction does the force on the wire act?
Correct answer: B. Downwards
- A. Upwards
- B. Downwards
- C. Towards the 'N' pole of the magnet
- D. Towards the 'S' pole of the magnet
Explanation
We can determine the direction of the force on the current-carrying wire using Fleming's Left-Hand Rule.Step-by-step explanation:Magnetic field direction (B):It is from the North (N) pole to the South (S) pole (left to right).Current direction (I):The current is going upwards (as shown by the arrow labeled I).Force direction (F):By Fleming's Left-Hand Rule:First finger = Magnetic field (left to right),Second finger = Current (upwards),Thumb = Force (direction of motion).When you align your left hand as per this rule, the thumb points out of the page (towards you).
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