blanton332 blanton332

19-05-2020
Physics

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What is the current through a 11v bulb with a power of 99w

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isaacoranseola isaacoranseola

25-05-2020

Answer:

9.01amp

Explanation:

Power = V^2/R

Given that v = 11volts, P = 99watts

99 = 11^2/R

11×11 = 99R

121= 99R

R = 121/99

R= 1.22ohms

From ohms Law; V = IR

11volts = I × 1.22ohms

I = 11/1.23

I = 9.01 amp

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