R2ishepiejackx R2ishepiejackx

18-03-2017
Physics

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An unknown resistance creates 2 amps of current when attached to a 30-volt power source. what is the size of the unknown resistance?
a. 0.07 ohms
b. 0.7 ohms
c. 15 ohms
d. 60 ohms

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DerpaNerpa DerpaNerpa

18-03-2017

V=IR, V=30, I=2, algebra and tada, R=15

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