Most of the time emitter resistors are used to set the bias point of the transistor. Occasionally emitter resistors may act as fast blow fuses to protect a power transistor. In series linear voltage regulators an emitter resistor on each pass transistor to the regulated node is there to equalize current sharing between the pass transistors.
In other words it depends on the circuit design.
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.
Resistor value is defined by the Resistance the resistor offers in Kilo ohms/ohms value given by color codes on the resistor.
A cement resistor is typically used as a power resistor (a resistor whose power rating is greater than 1 W).
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.
It does not have a ballast resistor.It does not have a ballast resistor.
The first 3 band on a resistor indicate the value of that resistor.
The alternator does not have a resistor.The alternator does not have a resistor.