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A lamp is rated 240V 60W The resistance of the ... - JAMB Physics 1990 Question

A lamp is rated 240V, 60W. The resistance of the filament is
A
960\(\Omega\)
B
16\(\Omega\)
C
15\(\Omega\)
D
4\(\Omega\)
correct option: a

P = (\frac{V_2}{R}) (\Rightarrow) R = (\frac{V_2}{p})

= (\frac{240\times 240}{60})

= 960(\Omega)

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