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01-03-2015
Mathematics

contestada

1: 2.5A
90V
R ?

2: 200 ohms
3.25mA
V ?

3: 2.5kv
300 ohms
I ?

Respuesta :

01-03-2015

R = V/I = (90V/2.5A) = 36 ohms

V = I x R = 0.00325 x 200 = 0.65 volts

I = V / R = 2,500 / 300 = 8 and 1/3 A

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