A-LevelPhysicsMagnetic fieldsOct/Nov 2020Paper 4 Q98 Marks
A small coil is placed close to one end of a solenoid connected to a power supply. The plane of the small coil is normal to the axis of the solenoid, as illustrated in [Figure 9.1]. The power supply causes the current I in the solenoid to vary with time t as shown in [Figure 9.2].
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