So if a resistor had length L, I could use the V=Ed equation to obtain the E field?CrazyNinja said:Yes, they do. Voltage ( better to say potential difference) is always caused due to accumulation of charges. The potential difference across a resistor is due to the electric field inside it, which is caused by accumulation of charges at its end points.
The electric field in a resistor is a force field that exists within the resistor and is responsible for the movement of electric charges. It is created by the difference in potential energy between the two ends of the resistor and is measured in units of volts per meter.
The electric field in a resistor determines the rate at which electric charges move through the resistor. As the electric field increases, the current flow also increases. This relationship is described by Ohm's law, which states that the electric field (voltage) is directly proportional to the current and inversely proportional to the resistance of the resistor.
Yes, the electric field in a resistor can be changed by altering the voltage or resistance of the resistor. Increasing the voltage will increase the electric field, while increasing the resistance will decrease the electric field. Additionally, the material and dimensions of the resistor can also affect the electric field.
In a series circuit, the electric field in each resistor is the same, as the voltage is shared among the resistors. However, the total electric field is equal to the sum of the individual electric fields. In a parallel circuit, the electric field is the same across each resistor, but the total electric field is reduced due to the decrease in resistance.
The electric field in a resistor is responsible for the conversion of electric energy into heat energy. As the electric charges move through the resistor, they collide with the atoms in the resistor, causing them to vibrate and generate heat. This is why resistors are often used in circuits to control the amount of current and prevent overheating.