Current and Voltage

If the voltage is increased and the resistance stays the same, what will current do?

• Increase

• Decrease

• Stay the same

• X

If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in the circuit?

• 5A

• 10A

• 15A

• 20A

What is the unit of measure for current?

• ampere

• current

• voltage

• ohms

What moves when we say that there is current?

• inductors

• conductors

• electrons

• atoms

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

What size resistor would produce a 3 Amp current flow with a 12 Volt battery

• 1 Ohm

• 3 Ohms

• 4 Ohms

• 12 Ohms

If the voltage stays the same and resistance is increased, what will current do? 

• Increase

• Decrease

• Stay the same

• X

How many Volts would it take to push 1 Amp through a resistance of 1 Ohm

• 10 volts

• 1 volt

• 48 volts

• 5 volts

How do you calculate voltage?

• Current X Resistance

• Resistance ÷ Current

• Current ÷ Resistance

• Measure it with a ruler

A resistor

• Is the same as resistance

• Is connected to a circuit in parallel

• Is used in a circuit to control the amount of current

• Is not measured in ohms

The circuit shown contains a battery, a 6.0 Ω resistor and two meters X and Y.

One meter records current and one meter records potential difference.

• meter X : 2.0 A

  meter Y : 12.0 V

• meter X : 2.0 V

  meter Y : 1.0 A

• meter X : 12.0 A

  meter Y : 2.0 V

• meter X : 12.0 V

  meter Y : 2.0 A