In the circuit below, the currents through the four resistors are as indicated. Use the junction rule to write the equations representing the relationship between the currents at the point c. (Use the following as necessary: ( I1, I6, and I2.)
In the circuit below, the currents through the three resistors are as indicated. Use the junction rule to write the equations representing the relationship between the currents at junction b. (Use the following as necessary: (I1, I2, and I5.)