Practice Potential Difference (voltage) (8.2) - Current Electricity

Practise this section

9 questions

Flashcard drill
3 cards from this section. Quick, good the night before a test.
Exercise
5 questions · about 3 min · pass mark 70%. Hints available.
Sign up to start the exercise
Quiz
4 questions · about 3 min · pass mark 70%. Hints available.
Sign up to start the quiz

6 sample questions

Question 1.
Define potential difference in your own words.
Show hintHide hint
Think about the energy involved and charged particles.
Question 2.
What is the formula for calculating potential difference?
Show hintHide hint
Consider what each symbol represents.
3Question 3.
What does potential difference measure?
- A) Energy per charge
- B) Resistance
- C) Current
- D) Power
Show hintHide hint
Consider what happens to charges in an electric field.
4Question 4.
True or False? Voltage can be defined as the work done per unit charge.
- True
- False
Show hintHide hint
Recall our discussion on the formula for voltage.
Question 5.
A device requires 50 volts to operate and utilizes 2 coulombs of charge to function. What is the total work done by the power source?
Show hintHide hint
Focus on the relationship between voltage, charge, and work.
Question 6.
If two batteries are connected in series providing a total voltage of 12V and are powering a device that requires 3A of current, what is the resistance of the circuit?
Show hintHide hint
Apply the relationship between voltage, current, and resistance.

5 more questions in this section. Enroll free to practise them all.