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Tutorial ID | Title | Tutorial | Video Tutorial | Revision Notes | Revision Questions | |
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16.6 | Ampere's Law |
1) A 4 mT magnetic field is produced at an Amperian loop taken outside a long straight conductor when current I is flowing through it as shown in the figure (it gives an upper view).
What is the magnitude of current flowing through the wire?
Correct Answer: D
2) A 4 cm thick cable (radius = 2 cm) carries 12A current. What is the magnetic field (magnitude and direction) 6 mm away from the centre of cross-section of the cable? (There is a ⊗ symbol at centre of figure)
Correct Answer: B
3) What is the current flowing through the windings of a toroid containing 1000 turns if the magnetic field inside the toroid 4cm away from its centre is 0.045 T?
Correct Answer: A
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