Free Printable Electrical Resistance

Worksheets

Electrical Resistance

Total questions: 14

Worksheet time: 6mins

Name

Class

Date

What is the unit of measurement for resistance?

Voltage

Ampere

Watts

Ohms

What is Resistance?

the degree to which a circuit component opposes the passage of an electric current, causing energy dissipation

How hard the energy is pushed

The amount of charges that pass by a given point per second

None of the above

Which resistor will prevent the most current flow?

1 ohm

100 ohms

1000 ohms

0.5k ohms

How does resistance affect current?

less resistance - less current

more resistance - less current

more resistance - more current

resistance does not affect current

the formula to find current when the values of V and R are known is

I = V²R

I = V/R

I = R/V

I=VR

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

1 Ohm

3 Ohms

4 Ohms

12 Ohms

How do you calculate resistance?

Current x Voltage

Voltage x Power

Voltage ÷ Current

Current ÷ Voltage

What happens to resistance when the length of the wire increases?

Stays the same

Increases

Decreases

Which of the following has this circuit symbol?

diode

fixed resistor

filament lamp

10.

Which of the following has this circuit symbol?

diode

fixed resistor

filament lamp

11.

A student wants to investigate what happens to the resistance of a wire when longer wire is used. What is the indepenent variable?

resistance

length

temperature of wire

voltage of power supply

current in circuit

12.

A student wants to investigate what happens to the resistance of a wire when longer wire is used. What is the most suitable control variable?

resistance

length

temperature of wire

voltage of power supply

current in circuit

13.

If the current through a resistor is 2A and the voltage across it is 12V, what is the resistance

12Ω

6Ω

24Ω

0.167Ω

14.

What effect do electrons flowing through a resistor have on the resistor.

make it glow

reduce it's resistance

increase it's resistance

heat it up

Reset

Electrical Resistance

Total questions: 14

Worksheet time: 6mins

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