Physics
Grade-10
Easy
Question
The magnetic field lines outside a solenoid carrying current:
- Originate from the South pole and end at its the North Pole
- Originate from the North pole and diverge continuously
- Originate from the North Pole and end at its the South Pole
- Originate from the South pole and diverge continuously
Hint:
Magnetic field lines are the imaginary lines,they form a closed loop. They flow from North pole to South pole outside the magnet, while they flow from South pole to North pole inside the magnet.
The correct answer is: Originate from the North Pole and end at its the South Pole
- The magnetic field lines follow the longitudinal path of the solenoid inside, so they must go in the opposite direction outside of the solenoid so that the lines can form a loop.
- Magnetic field lines are the imaginary lines around a magnet which gives us the pattern of magnetic field of the magnet. These lines don't start or end. They form a closed loop. They flow from North pole to South pole outside the magnet, while they flow from South pole to North pole inside the magnet.
- The direction of magnetic field lines outside a magnet is from the North Pole to the South Pole
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