What is the unit of electric current?
What is the property of a material that opposes the flow of electric current called?
The diagrams show four circuits.
Which circuit contains two bulbs connected in parallel with each other, and contains an ammeter that measures the total current in the two bulbs?
What happens to the resistance when more resistors are added in parallel?
What happens to the total resistance of a circuit if resistors are connected in a series?
What happens to the total resistance in a parallel circuit when a new resistor is added?
What is the potential difference across a 4 ohm resistor with a current of 0,5 A?
What is the total resistance in this circuit?
Which of the following describes emf?
What are resistors in series best described as?
When resistors are connected in parallel, they act as:
What is the property of an ohmic conductor?
What unit is used to measure work done by electricity?
What is the voltmeter reading over the 12 Ω resistor?
What is the effective resistance of the two resistors in parallel?
What is the current in the 12 Ω resistor?
A student investigates how the current in resistor R varies with the voltage across it.
Which circuit does the student use?
What is the resistance of the light bulb?
Which statement is correct?
Which symbol represents a fuse?
