Figure shows a part of a circuit. If a current of 12 mA exists in the 5 kΩ resistor, find the currents in the other three resistors. What is the potential difference between the points A and B?
4mA, 8mA, 1340V.
Here, current in 
resistor is 
.
Let current through 
be 
and that from 
be 
such that 
now, the potential across 
and 
has to be same as they are connected in parallel.
Current flowing through 
is 4mA and that from 
is 8mA.
To calculate potential difference, we need to find the equivalent resistance.
The current is 
Therefore, potential between A and B is 
1