Basic Electricity

The current flowing thru a circuit is directly proportional to the voltage and inversely proportional to the resistance. True or False

• True

• False

If a circuit has resistance of 25 Ohms and a current of 5 Amperes , what is its voltage?

• 5

• 25

• 50

• 125

This is the electric symbol for open switch.

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Tags

NGSS.HS-PS2-5

Which is NOT a major component of a circuit?

• Load

• Resistor

• Source

• Wire

This is the rate of electric charges from one point to another in a circuit.

• Charge

• Current

• Resistance

• Voltage

Tags

NGSS.HS-PS3-5

What is the unit for current?

• Ampere

• Coulomb

• Ohm

• Voltage

He is a German Physicist and Mathematician known for his Ohm's law.

• Alessandro Volta

• Andre Ampere

• Benjamin Franklin

• George Simon Ohm

This is the opposition to the flow of current by the conducting wire.

• Charge

• Current

• Resistance

• Voltage

Which of the following is the correct statement of Ohm’s Law?

• When current increases in a circuit, voltage increases and resistance increases.

• When current increases in a circuit, voltage decreases and resistance increases.

• When current increases in a circuit, voltage increases while resistance remains constant.

• When current decreases in a circuit, voltage decreases and resistance increases.

Consider a simple electric circuit with a voltage source of 20.0 V which has a current of 0.500 A. What is the resistance of the load?

• 20.0 ohms

• 30.0 ohms

• 40.0 ohms

• 50.0 ohms