Understanding Electric Current

What is electric current and how is it produced?

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How can the flow of electrons in a wire be compared to?

• The flow of air in a balloon

• The flow of water in a pipe

• The flow of cars on a road

• The flow of light in a fiber optic

What is the force that pushes electrons called?

• Resistance

• Voltage

• Current

• Power

What are the two ways electric current can flow?

• Direct current and alternating current

• Static current and dynamic current

• High current and low current

• Positive current and negative current

What type of current is usually generated by batteries?

• Alternating current

• Direct current

• Static current

• Pulsating current

What is the opposition to the flow of current called?

• Voltage

• Resistance

• Current

• Power

What is the unit of measurement for electric current?

• Volts

• Watts

• Amperes

• Ohms

Which component is used to store electrical energy in a circuit?

• Transistor

• Inductor

• Capacitor

• Resistor

What is the effect of increasing resistance in a circuit?

• Increases voltage

• Increases current

• No effect on current

• Decreases current

What happens to the current in a parallel circuit if one branch is disconnected?

• Current decreases in other branches

• No effect on current

• Current increases in other branches

• Current stops flowing