Paper 2 · Work, Energy and Power
A light bulb is labelled 240 V, 60 W. Calculate the current that flows through the bulb when it is operating normally.
A4 A
B60 A
C0.004 A
D0.25 A
Explanation: P = IV, so I = P/V = 60/240 = 0.25 A.
Derived from ZIMSEC Physics 5055/2 Paper 2 Theory, November 2016, Q5
