Physics paper 1 2023 Correct 100%
step-up transformer (first transformer in a national grid diagram) - ANSWERa transformer that increases voltage step-down transformer (second transformer in a national grid diagram) - ANSWERa transformer that decreases voltage transformer - ANSWERA device that increases or decreases the voltage of alternating current transformer - ANSWERdecreases current Power=(current)^2*resistance - ANSWERP=I^2*R Resistance equation - ANSWERVoltage/current Efficiency equation - ANSWEREfficiency= Useful energy output/total energy input -Measured in %
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physics paper 1 2023 correct 100
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physics paper 1 stuvia 2024
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step up transformer first transformer in a nation
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step down transformer second transformer in a nat
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