Science 10 Review Questions on Resistance, Voltage and Current
1. a) Define the term electric potential.
b) State the SI unit and name the symbol for electric potential.
2. a) Define the term “electric current”
b) State the SI unit and the symbol used for electric current.
3. a) Define the term “electrical resistance”
b) State the SI unit and name the symbol used for resistance.
4. Does the wire in the electrical cord of an electric kettle have a higher or lower resistance than the
heating element inside the kettle?
5. Compared with copper, is tungsten wire a high resistance or low-resistance metal? How does this
account for how these metals are used?
6. Using the diagrams below to answer the questions that follow:
7. Give the letter for each of the above diagrams that are in
a. Series:
b. Parallel:
8. Between a, c, e, and f above, which would provide
a) The least amount of resistance and why?
b) The greatest amount of resistance and why?
9. Which of the above diagrams would provide the greatest amount of voltage? Explain why you think this.