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WJEC GCSE Electronics circuit concepts quiz quiz

15questions. Pick an answer and you'll see why right away.

  1. Which equation links charge, current and time?

  2. A voltage of one volt means that:

  3. How should an ammeter be connected to measure the current through a lamp?

  4. What is the resistance of a component with 6.0 V across it and 0.020 A through it?

  5. What is the I-V characteristic of a fixed resistor at constant temperature?

  6. Why does the I-V graph of a filament lamp bend over at higher voltages?

  7. At about what forward voltage does a silicon diode begin to conduct?

  8. Which equation gives electrical power directly from voltage and current?

  9. A resistor carries 0.20 A and has resistance 50 Ω. What power does it dissipate?

  10. Which equation gives the energy transferred by a component?

  11. In a series circuit, the current is:

  12. Two resistors in series are across a 9.0 V supply. One has 6.0 V across it. The other has:

  13. Each branch of a parallel circuit has across it:

  14. Which instrument best shows how a voltage changes with time?

  15. What does a logic probe tell you about a point in a digital circuit?