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10 February, 16:53

Find the current through the 30.0 ω resistor.

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  1. 10 February, 17:13
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    To calculate for the current, we simply have to take the ratio of the voltage over resistance. That is:

    Current, I = Voltage, V / Resistance, R

    I = V / R

    So for example if our voltage is 12.5 V and our resistance is 30.0 ohms, current is:

    I = 12.5 / 30

    I = 0.417 A = 417 mA
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