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| Numerical 09 |
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| 09. A long, thin straight solenoid has 500 turns wound over a length of 50cm. It carries a current of 0.5A. What is the magnetic field inside this solenoid? |
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| Suggested solution: |
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| The magnetic field B, at a point on the axis is |
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| B = monI / L |
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| Given: N = 500 : L = 50 cm = 0.5m : I = 0.5A |
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| B = 4 x 10-7 x 5 x 102 x 0.5 / 5 x 10-1 = 6.284 x 10-4 T |
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Moving Charges and Magnetism
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