Oak ScienceTest · Science

Potential divider circuits

The starter and exit quiz of the lesson “Potential divider circuits”, from the unit “Circuit components” (Year 10 Science) by Oak National Academy.

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Oak National Academy

12 questions

What is this electrical component?
What currents will be able to pass through this component?
In this model of a metal lattice, what do the black circles represent?
In this model of a metal lattice, what do the small blue circles represent?
What is the total resistance of these resistors when they are joined together?
A current of 0.3 A flows through these resistors. What is the p.d. across the 3 Ω resistor?
Which of these statements is correct about the p.d. across components in a series circuit?
What is the p.d. across the 3 Ω resistor if the p.d. across the three resistors is 15 V?
What is the p.d. across the 20 Ω resistor?
What is the current through the 10 Ω resistor?
What is correct about a potential divider circuit with two resistors, one that has a lower resistance than the other?
Which of these components would be used in a dimmer switch?

License: OGL