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3 cards from this section. Quick, good the night before a test.
What is the right-hand rule used for?
Think about the thumb and curling fingers.
What does the Biot-Savart Law describe?
It includes variables like current, length, and distance.
What principle is illustrated by Oersted's experiment?
Think back to what was illustrated with wires and compass needles.
True or False: Ampere’s Circuital Law is applicable in non-symmetric situations.
Recall what conditions are necessary for this law to apply.
A current of 5 A flows through a long straight wire. Calculate the magnetic field at a distance of 10 cm from the wire.
Carefully convert units where necessary.
Two parallel wires carry currents of 10 A and 20 A in the same direction. Calculate the net magnetic field at a point located between the two wires, 5 cm away from each.
Remember that fields are additive when currents are in the same direction.
4 more questions in this section. Enroll free to practise them all.
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