If the length of the filament of a heater is reduced by \( 10 \% \)...

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If the length of the filament of a heater is reduced by \( 10 \% \) the power of the heater will :
\( \mathrm{P} \)
(A) Increse by about \( 9 \% \)
(B) Increase by about \( 11 \% \)
(C) Increase by about \( 19 \% \)
(D) Decrease by about \( 10 \% \)
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