- #1
Mr.Bomzh
- 90
- 0
Hi, I was reading a paper on circuits, electric field and resistance.Now i have a question , the paper says that in a resistor or part of circuit which has higher resistivity the electric field is higher than
in those parts were there is low or lower resistance, now is that true, it seems to me.
So here is my attempted explanation, for a given PD , for example 100 volts , there is a given strength of the electric field as that corresponds to the voltage or PD.
If the wire leading to the resistor has a resisance of 1ohm then the electric field has to do very little work to get the charges moving , in the resistor , for example 100ohm, the electric field has to increase because now it is 100x times harder to push the charges through that part of the circuit, so
the electric field outside and around the resistor is stronger?
like in the water flow analogy for a given water flow , if the pipe gets smaller in diameter the pressure increases.
in those parts were there is low or lower resistance, now is that true, it seems to me.
So here is my attempted explanation, for a given PD , for example 100 volts , there is a given strength of the electric field as that corresponds to the voltage or PD.
If the wire leading to the resistor has a resisance of 1ohm then the electric field has to do very little work to get the charges moving , in the resistor , for example 100ohm, the electric field has to increase because now it is 100x times harder to push the charges through that part of the circuit, so
the electric field outside and around the resistor is stronger?
like in the water flow analogy for a given water flow , if the pipe gets smaller in diameter the pressure increases.