Final answer:
The unit for measuring resistance is ohms (Ω), represented with the symbol Ω. To find total resistance in a series circuit, individual resistances are simply added together.
Step-by-step explanation:
The measurement unit for resistance is ohms (Ω). When calculating total resistance in a series circuit, one sums up the individual resistances directly. The formula for total resistance in a series circuit is Rs = R1 + R2 + R3 + ... .
Each resistor in a series circuit has the same current flowing through it, but the voltage drop across each resistor is different and adds up to the total voltage supplied by the power source.
As a component of electronic circuits, a resistor is often used to control current flow or voltage levels within the circuit. Resistance is measured in ohms, which is related to voltage and amperes by the equation 1 Ω = 1 V/A. It's important to note that resistance is a property that limits the flow of electric charge in a circuit.