Grade 9 - Circuits

Test yourself on Grade 9 - Circuits

• The bulbs on Christmas lights are often connected in parallel. Which of the following would be an advantage of this arrangement?

• Consider a circuit with two resistors of equal value connected in series. If another resistor of the same value is connected in parallel with ONE of these resistors, what will be the effect on the total resistance of the circuit?

• Two ohmic conductors are connected in series, with the second conductor having a larger drop in potential difference across it. What can be determined about the values of the resistances of the conductors?

• This time, the ohmic conductors are connected in parallel. Assuming they have the same value of resistance, what can be inferred about the current passing through each conductor?