2. How does a diode allow current to flow in a circuit?

• A. It reduces resistance in a circuit

• B. It blocks current in both directions

• C. It increases the voltage in a circuit

• D. It allows current to flow in one direction only

1. What is the primary function of a resistor in an electrical circuit?

• A. To amplify signals

• B. To convert AC to DC

• C. To store electrical charge

• D. To control the flow of current

4. A fuse in a circuit repeatedly blows. What could be the most likely to use?

• A. The power supply is turned off

• B. The fuse has too high of a rating

• C. The circuit has too much resistance

• D. The circuit is experience too excessive current

3. If a transformer is needed to step down voltage from 220V to 110 V, what must be true about its windings?

• A. The transformer must be connected in parallel

• B. The primary winding has more turns than the secondary winding

• C. The primary winding has fewer turns than the secondary winding

• D. Both windings have the same number of turns

5. In a charged capacitor, where is the energy stored?

• A. In the positive charges

• B. In the negative charges

• C. In the electric field between the plates

• D. Around the edges of the capacitor plates