Physics
Grade-10
Easy
Question
Read the following statements and choose the correct option:
Statement A: The magnetic field produced by a current-carrying loop has no poles.
Statement B: Like poles of magnets repel each other.
- Both statements A and B are false
- Both statements A and B are true
- Statement A is true, B is false
- Statement B is true, A is false
Hint:
- When the two magnets of like poles are kept facing each other the lines of forces are in opposite directions
The correct answer is: Statement B is true, A is false
- If we put a current carrying wire in a magnetic field perpendicular to its length, then it neither gets attracted or repelled by that field and hence these concentric circles neither have a starting point nor an ending point and the compass points tangential to the circles at every point.
- Like poles of a magnet repel each other. This is because when the two magnets of like poles are kept facing each other the lines of forces are in opposite directions. So the like poles repel each other
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