The current flowing through aresistorat a constant temperature is directly proportional to the potential difference across it. This is called Ohm鈥檚 law. This is the graph of current against potential difference for a resistor at constant temperature:

• ### What is the relationship between current and voltage in a resistor?

• This means current in = current out. A resistor is an imperfect conductor, which means current cannot flow through it effortlessly. The effort required to push the charges through the resistor is supplied by voltage. Work expended per unit of time is equal to effort x flow which in this case is voltage x current, or watts.

• ### Why current does not flow through a resistor with an alternative?

• In summary, the current does not flow through the resistor with an alternative low resistance path, because there is no voltage across the resistor to push it through.

• ### How do you push a current through a resistor?

• To push through the resistance: note that for a voltage source, connecting it to a resistor cuts down on the current while the input voltage stays the same. For a current source(which is rare), connecting it to a resistor increases the voltage so the current stays the same.

• ### What is the work of a resistor?

• A resistor is an imperfect conductor, which means current cannot flow through it effortlessly. The effort required to push the charges through the resistor is supplied by voltage. Work expended per unit of time is equal to effort x flow which in this case is voltage x current, or watts.