With the help of given diagram answer the following:
what will be the current shown by the ammeter and the potential difference between point S and T

when
P is conencted to Q?

What is meant by saying that the potential difference between two points is 1 V?

Calculate the current shown by ammeter A in the circuit diagram given below

What is the potential difference between two points in the electric field? Name its SI unit.

In the n-p-n transistor circuit shown in the figure. What is the potential difference between base and collector

5J work is done in moving a positive charge of 0.5 C between two points. What is the potential difference between these points?

In an electric field the work done in bringing a 2 coulomb charge from infinity to a point a is 10 joules and in bringing the same charge to some another point B is 20 joule find the potential difference between two points A and B what would be the work done if the same charge is brought directly from A to B.