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25-04-2016
Computers and Technology

contestada

If the current through a heater coil is 5 amp and the supply voltage is 120 volts, the coil resistance is A. 0.04 ohm. B. 24 ohms. C. 110 ohms. D. 575 ohms.

Respuesta :

25-04-2016

V = i.r
120v = 5A x r
Resistance = 120:5 = 24 ohm

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