(a)[3]
Calculate the current flowing in the wire.
(b(i))[1]
On Fig. 9.1, add arrows to show the direction of the magnetic field.
(b(ii))[1]
State what, if anything, happens to the force direction on the wire.
(c(i))[2]
State two ways to make the turning effect on the coil larger.
(c(ii))[2]
Describe and explain what happens when the battery connections are reversed.