PHYSICS

Asked by JoshuaIn parallel, the total resistance is found by using 1/total resistance = 1/R1 + 1/R2... so in this case 1/total resistance = 1/10 + 1/8 + 1/4. As this is a parallel circuit you always have the same p.d across each resistor. Then, the current is calculated using Current = p.d/resistance of each resistor. (Remember the p.d is the same as the source).

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