CHAPTER 1 - PART A - CIRCUIT

What is an electric circuit?

• A closed loop that allows for the uninterrupted flow of water

• A path that allows for the uninterrupted flow of electric current

• An open path that prevents the flow of electricity

• A physical layout of electronic components without any connectivity

In a simple electric circuit, how does the electric current flow?

• From the positive to the negative terminal of the power source

• From the negative to the positive terminal of the power source

• In random directions, depending on the resistance

• Electric current does not flow in a circuit

Which of the following is NOT a typical component of an electric circuit?

• Battery

• Light bulb

• Water pump

• Wire

What is the SI unit of voltage?

• Ampere

• Volt

• Ohm

• Coulomb

Which of the following is true about electric charge?

• Protons carry negative charge

• Electrons carry positive charge

• Electric charge is measured in joules

• Electric charge is quantized and typically measured in coulombs

Electric current is the flow of:

• Protons

• Electrons

• Neutrons

• Atoms

What is resistance in an electrical circuit?

• The ability of a material to conduct electricity

• The resistance to the flow of electric current in the conductor

• The force exerted by the electric field

• The amount of charge flowing through a circuit

According to Ohm's Law, what is the relationship between voltage (V), current (I), and resistance (R)?

• V = I/R

• V = I + R

• V = IR

• V = I - R

If a 9-volt battery is connected to a resistor with a resistance of 3 ohms, what is the current?

• 3 Amperes

• 6 Amperes

• 12 Amperes

• 27 Amperes

In a typical household electrical wire, which particles are moving to create current?

• Protons

• Electrons

• Ions

• Positrons