Physics 0625: MAGNETS AND CURRENTS Topical Past Paper Questions

(a) Figure 9.1 shows a copper cylinder placed on two metal rods in the magnetic field between the poles of a magnet. Figure 9.1 The switch is closed. (i) On Figure 9.1, mark with an arrow the direction of the current in the copper cylinder. [1] (ii) The copper cylinder moves to t…

Fig. 7.1 shows a simple a.c. generator. Fig. 7.1 (a) > **(i)** Explain the function of the slip rings and brushes. [1] > > **(ii)** Describe how an alternating current is generated in the lamp. [3] > > **(iii)** State two possible changes that cause a larger maximum current in th…

**(a)** Fig. 8.1 shows a wire carrying a large current. Fig. 8.1 > **(i)** Fig. 8.2 shows the square card viewed from above. > > > Fig. 8.2 > > On Fig. 8.2, draw three magnetic field lines that indicate the direction of the magnetic field and how its strength varies with distance…