#46 OhmWork
Set by Phil Lloyd
When electrical resistors are connected in series, the total resistance is the sum of the individual resistances. When they are connected in parallel, the total resistance is found by taking the reciprocal of the resistance of each resistor, adding them together, and taking the reciprocal of the result. This circuit, using three 1-ohm resistors, has a resistance of 3/2 ohms:
There are three more circuits using three 1-ohm resistors. What are their resistances?
A circuit uses 10 1-ohm resistors – three in series, then seven in parallel. What is its resistance? (It is an…
