Electrical circuits - resistors in parallel

4 important questions on Electrical circuits - resistors in parallel

For a parallel circuit you have the formula..?

I = I1 + I2

The potential difference across each resistor is the ...: between two points there can ... p.d >> U1 = U2.

the same - can only be one

The total resistance followes from the indivudal resistance:

1:Rtotal = 1:R1 + 1:R2
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A variable resistor (rheostat) can be connected in a circuits as..?

a potential divider.

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