As told in the video of Krichoff's voltage law, that if we move from low potential to high potential aross a battery which is from negative terminal to positive terminal, the voltage gets added. So if we would have taken the direction of loop in the other way round i.e from high potential to low potential which is from positive to negative, would we substract it?

Open in App

Solution

You can take any direction as positive. Here when you go through the loop if you assign low->high as positive it's opposite is negative so here if you reverse the direction of the loop the sign of the voltage reverses.Ie, you take voltage -ve

Suggest Corrections

Similar questions

Q. When a current of

2 A

flows in a battery from negative to positive terminal, the potential difference across it is

12 V

. If a current of

3 A

flowing in the opposite direction produces a potential difference of

15 V

, the EMF of the battery is

Q. Assertion :In a simple battery circuit, the point of the lowest potential is negative terminal of the battery. Reason: The current flows towards the point of the higher potential, as it does in such a circuit from the negative to the positive terminal.

For a real battery the work done by battery is equal to increase in electrical potential energy of a positive charge as charge moves from negative terminal to positive terminal of battery

Is this above statement true. ??

Q. In electric field how we define high potential and low potential and why the electrons move from the region of lower to higher potential whereas positive charge moves from higher to lower potential

Q. On applying a potential difference, electrons move from positive terminal to negative terminal.

Join BYJU'S Learning Program