Hahn.
you don't. you calculate resistors required for your needs then select closest available resistors made with acceptable tolerance.
To read the value of a resistor: Resistors are color coded, you can use the chart found below And how accurate the values of resistors are is their tolerance, also found in the chart
Resistors limit the flow of current in an electrical circuit.
The total resistance of resistors in series is simply the sum of the resistance values of those resistors. If the resistors are identical, then you can multiply the resistance of one of them by the number of resistors in the circuit.
resistors are used to resist the flow of current in a circuit.......
Resistors reduce the flow of current in an electrical circuit, which in turn affects the voltage across the circuit.
RC Circuit
Timing circuits, and any circuit that depends on the resistor value being fairly precise, such as voltage dividers and comparators. Old story....engineers knew that you couldn't pick through a bunch of loose precision resistors to find close tolerance resistors....The manufacurer already took the close precision resistors and sold them separately. This is not so true these days. Even low tolerance resistors might be high precision. Usually the manufacturer will fill the loose precision needs with parts better than required.
we use resistors in an electric circuit to describe how a wire works and to control the flow of electricity
A circuit with five resistors and a battery is constructed by connecting the resistors in series or parallel to create a closed loop for the flow of electric current from the battery through the resistors. The battery provides the energy for the current to flow through the resistors, which resist the flow of current. The arrangement of the resistors and the battery determines the overall resistance and current flow in the circuit.
Resistors resist the flow of current in a circuit, not the voltage.
A series circuit