What current must the wire have carried

Reference no: EM13535769

In Oersted's experiment, suppose that the compass was 0.27 m from the current-carrying wire. If a magnetic field of 1/4 the Earth's magnetic field of 5*10-5 T was required to give a noticeable deflection of the compass needle, what current must the wire have carried?

Reference no: EM13535769

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