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adanna
Lv 5
adanna asked in Science & MathematicsPhysics · 1 decade ago

How long does it take for 10 million electrons to pass through the TV?

A television set connected to a 120 V outlet consumes 75 W of power. How long does it take for 10 million electrons to pass through the TV?

I=0.63A

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  • Fireman
    Lv 7
    1 decade ago
    Favorite Answer

    By P = V x i

    =>75 = 120 x i

    =>i = 75/120 = 0.63 amp

    amp = C/sec

    =>sec = C/amp

    =>time = [1.6 x 10^-19 x 10 x 10^6]/0.63 = 2.54 x 10^-12 sec

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