CAIE A-Level Physics A2 20.4.1 Magnetic Field Patterns Due to the Currents in a Long Straight Wire a Flat Topic Practice

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Question 1

[Maximum number: 3]

A long straight vertical wire A carries a current in an upward direction.
The wire passes through the centre of a horizontal card, as illustrated in Fig. 10.1.

Fig. 10.1

Fig. 10.1

The card is viewed from above. The card is shown from above in Fig. 10.2.

Fig. 10.2

Fig. 10.2

On Fig. 10.2, draw four lines to represent the magnetic field produced by the current-carrying wire.

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