Two wires a and b with same dimension of 50 cm length and 0.5 cm radius are used to study
the effect of magnetic field, b. wire a is bent to form a 2 turns circular coil while wire b into
10 turns solenoid. both wires are supplied with a 5 a current,
i) which wire will produce a higher magnetic field at the centre?
ii) sketch the patterns of the magnetic field for both wires.
iii) suggest 2 changes that you can make to wire a so that its magnetic field is equal to wire
b.