5.1.3. Generalized Methods

Try these first

1. 1.

   Define a diode and its primary function in a circuit.

   Hint

   Think about its role in controlling current flow.

2. 2.

   Explain KCL in your own words.

   Hint

   Recall the flow of water in pipes.

3. 3.

   What does a diode do in a circuit?

   • Allows current to flow both ways
   • Blocks current flow
   • Allows current to flow in one direction

   Hint

   Think about what happens when you connect a battery.

4. 4.

   True or False: KVL states that the total voltage around any closed loop must equal zero.

   • True
   • False

   Hint

   Recall how energy is conserved in a circuit loop.

5. 5.

   A diode with a threshold voltage of 0.7 V is applied in a circuit with a 5 V supply and a series resistor of 1 kΩ. Calculate the current through the diode when it conducts.

   Hint

   Start by calculating the voltage drop across the resistor.

6. 6.

   Evaluate KCL at a junction with three current paths of 2 mA, 3 mA, and an unknown current. What is the unknown current?

   Hint

   Consider all currents entering and leaving the junction.