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dudumix
@dudumix
October 2020
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um resistor , sob ddp de 220 v , dissipa uma potencia de 1000w .
qual e a sua resistência eletrica?
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vanessaalbuquerque
P = V^2/R
P1 / P2 = V1 ^2 / V2^2 = (V1/V2)^2
P1/P2 = (220/110)^2 = 4 >>> P1 =4.P2 >>>1000 = 4.P2 >>> P2 = 1000 / 4= 250 Watts
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dudumix
Qual e a sua resistência elétrica ?
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P1 / P2 = V1 ^2 / V2^2 = (V1/V2)^2
P1/P2 = (220/110)^2 = 4 >>> P1 =4.P2 >>>1000 = 4.P2 >>> P2 = 1000 / 4= 250 Watts