Physics · Oct / Nov 2017 · Paper 21 · Question 7
5054
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The question as text
An electric circuit consists of a battery, a variable resistor and connecting wires. Sections PQ and QR of the connecting wire are in a region of space where there is a uniform magnetic field. In Fig. 7.1, the shaded area represents the magnetic field. uniform magnetic field into the page P Q R Fig. 7.1 The direction of the magnetic field is into the page. A current-carrying wire in a magnetic field can experience a force.
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7(a)[2]
7(b)[2]
7(c)[1]
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