No, just enough
there is less loss of energy through heat, ergo making a more efficient resistor.
It becomes more efficient. kapm
yes, a variable resistor
Otis F. Boykin invented the wire precision resistor and the electrical resistor.
A non-ohmic resistor doesn't have a constant resistance. A ohmic resistor has a constant resistance.
A cement resistor is typically used as a power resistor (a resistor whose power rating is greater than 1 W).
Resistor value is defined by the Resistance the resistor offers in Kilo ohms/ohms value given by color codes on the resistor.
If a loop of wire is moved into a magnetic field, a voltage appears across the ends of the loop. The physical principle is electromagnetic induction. If a resistor is then connected across the ends, current will flow, heating up the resistor. This time, a force will be needed to push the loop into the magnetic field. This force supplies the energy that goes to heat the resistor, and the principle here is Conservation of Energy. An engineer's job is to make this process reliable and efficient.
The Cable is the Resistor ! Its a Resistor-Cable ! Greets from the Lake of Constance/Germany !
Where would you find a material which is a resistor? You can find a resistor material in Europe
A voltmeter can be connected in parallel with a resistor to show the voltage across the resistor.
A series dropping resistor is a resistor that limits the amount of current flow in a circuit.