If the electric current in a lamp decreases by \( 5 \% \) then the power output decreases by a. ...

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If the electric current in a lamp decreases by \( 5 \% \) then the power output decreases by
a. \( 20 \% \)
b. \( 10 \% \)
c. \( 5 \% \)
d. \( 2.5 \% \)
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