Numericals on Kirchhoff's law/Diploma Physics

NUMERICALS ON KIRCHHOFF'S LAW:

Calculate the current through the galvanometer when a potential difference of 10 V is maintained across AC as shown in the image.

SOLUTION:

KIRCHHOFF'S SECOND LAW:

Kirchhoff's subsequent(second) law is otherwise called Voltage law (OR) Loop law.This law depends on LAW OF CONSERVATION OF ENERGY.Kirchhoff's subsequent law expresses that " THE ALGEBRAIC SUM OF ALL THE POTENTIAL DIFFERENCES ALONG A CLOSED LOOP IS ZERO".

CONVENTIONS:

Accept any course (direction) as the heading of traversal (direction of traversal). (Either clockwise or anticlockwise)

EMF of the cell is POSITIVE in the event that the bearing of the crossing (direction of the traversal) is from its NEGATIVE terminal to POSITIVE terminal. (NPP)

EMF of the cell is NEGATIVE assuming the heading of the crossing (direction of the traversal) is from its POSITIVE terminal to NEGATIVE terminal of the battery. (PNN)

The IR item is taken as POSITIVE on the off chance that the resistor is crossed a similar way as the expected to be current. (If the resistor is traversed in the same direction as the assumed current.) 

MODIFIED CIRCUIT 

FOR THE CLOSED LOOP BADB:

FOR THE CLOSED LOOP BADB:

FOR THE CLOSED LOOP ADCEFA: