Electricity - Ohm's Law Review

Which of the following represents the rate of the flow of electricity, expressed in unit of amps? (LT1/DOK1)

• current

• circuit

• voltage

• resistance

Tags

NGSS.HS-PS2-5

Which of the following represents the opposition presented to the current by a material or device, measured in ohms? (LT1/DOK1)

• current

• resistance

• voltage

• electricity

Which of the following represents the potential difference between two points, measured in volts? (LT1/DOK1)

• voltage

• current

• electricity

• resistance

If a charger for a tablet offers a voltage of 120V and has 240Ω of resistance, what is the amperage? (LT2/DOK1)

• 0.5A

• 2A

• 14,400A

• 28,800A

If an electric ceramic brush has a current of 0.3 amps and a voltage of 120 volts, what is the resistance? (LT2/DOK1)

• 18Ω

• 36Ω

• 200Ω

• 400Ω

If a computer has 10.0A of current and 11Ω of resistance, what is its voltage? (LT2/DOK1)

• 0.9V

• 1.1V

• 55V

• 110V

Without considering the LED light, what would the current be in this schematic? (LT2/DOK2)

• 0.01A

• 73.3A

• 220A

• 660A

Without considering the LED light, how many more volts will you need to increase the current to 0.05A? (LT2/DOK2)

• 11V

• 8V

• 24V

• 18V

Based on the graph, which of the following would be true regarding the relationship of voltage and current? (LT3/DOK2)

• As voltage increases, current decreases.

• Voltage will not affect current.

• As voltage decreases, current increases.

• As voltage increases, current also increases.

What is resistance measured in?

• Ω (Ohms)
• V (Volts)
• A (Amps)
• W (Watts)