Basic Electronics Paper 2, WASSCE (SC), 2017

Question 2

 

  1. State Kirchhoff’s current law.
  2. In figure 1, calculate

                    

 

  1. V;
  2. I2;
  3. I3;
  4. I.

 

Observation

     

  1. Kirchhoff’s current law:

              The algebraic sum of currents flowing into a node in a circuit is zero.
OR
The algebraic sum of currents flowing out of a node is zero
OR
The sum of currents flowing into a node is equal to sum of current flowing out of the   
node.