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In an electrical circuit the voltage across a resistor is directly proportional to the current running through the resistor. If a current of 16 amps produces 680 volts across a resistor how many volts would a current of 3.5 amps produce across an identical resistor? |
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Answer» Given, Current 1 (I₁) = 16 A P.d (V₁) = 680 V By OHM's law, V₁ = I₁R = 680 = 16R = 42.5Ω = R Current 2 (I₂) = 3.5 A RESISTANCE (R) = 42.5 Ω If we assume that resistance remains the same, By using Ohm's law, V₂ = I₂R = 3.5*42.5 = 148.75 V The New Potential Difference will be 148.75 V. I hope this helps. |
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