Paper 2 · Measurement (length, thickness of a wire)
Twenty turns of wire are wound closely together around a pencil so that the length spanning the turns is 25 mm. Calculate the thickness of the wire.
A1,25 mm
B25 mm
C0,8 mm
D12,5 mm
Explanation: Thickness = length AB / number of turns = 25 mm / 20 = 1,25 mm.
Derived from ZIMSEC Physics Paper 2, November 2021, Q1
