why is potential? Why is positive charged terminal is considered to have higher potential than negative terminal in a battery
2007-02-02 21:49:02 · 8 answers · asked by sarita s 1 in Science & Mathematics ➔ Physics
potential difference it is the work doe to transfer 1c. from one point another and positive charged have more potential diffrent so positive charge go to negativr sharge and make an electric circuit
2007-02-02 22:01:19 · answer #1 · answered by dodo 4 · 0⤊ 0⤋
Why is potential?
Because to measure degree of intensity of any vector field.
In this question, as charge is involved, potential is a measure of degree of intensity of electric field.
Potential difference is difference of potential energy of a test charge when we keep the test charge at two different points.
At present there is no such consideration. In early days, when there was no clear perception that positive charge is proton and negative charge is electron and for all electrical transmission only electron takes part in electrical energy transfer. Electron moves from negative terminal to positive terminal of a battery. i.e. electron is being repelled by negative terminal and attracted by positive terminal. That is negative terminal is at higher potential w.r.t. electron and for proton this is just reverse. For stability of any object that always try to move from higher potential state to lower potential state to gain minimum energy.
That is negative terminal of a battery is at higher potential.
But the convention is still continuing because early engineers were habituated with that convention and the successors follow this somewhat unconsciously.
It is as still we are using AWG, SWG, Mill in wire diameter measurement though all books we find with metric system only.
2007-02-03 07:17:19 · answer #2 · answered by Dilip Dey 2 · 0⤊ 0⤋
The two previous ones answered the first question. So let me move to the second one.
Current slows from higher potential to lower potential. Right? And you know that current always flow from +ve to -ve terminals. So +ve is higher potential and -ve is lower termianl.
Anyway, in Maths, +ve value are always greater than -ve values
2007-02-03 08:45:22 · answer #3 · answered by Ieshwar 2 · 0⤊ 0⤋
The potential difference is a quantity related to the amount of energy that would be required to move an object from one place to another against various types of forces. It is also known as voltage.
No idea about the 2nd Question, sorry.
2007-02-03 06:01:30 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Electrons move from the negative terminal to the positive terminal due to potential difference. pd is the difference of a certain quantity between two terminals
2007-02-03 05:59:56 · answer #5 · answered by Roshu 1 · 0⤊ 2⤋
Potential difference is the difference in some quantity between two points in a conservative vector field of that quantity.
2007-02-03 05:57:41 · answer #6 · answered by parul_kohli1721 1 · 0⤊ 2⤋
Before people knew about electrons they guessed it would be the other way around with positively charged particles.
2007-02-03 05:57:35 · answer #7 · answered by fleacircusdirector 3 · 0⤊ 2⤋
potential difference is workdone per unit charge
2007-02-03 06:00:13 · answer #8 · answered by navvvi 1 · 0⤊ 2⤋