Revision: DC Circuits 16 DC Circuits - Revision Quiz Test your understanding of DC Circuits here: 1 / 5 1) What is the voltage across the 1 Ω resistor? 1 V 6 V 5 V 2 V 2 / 5 2) In the circuit diagram below, all the lamps are identical. When switch K is closed, the brightness of X will remain the same. X will be dimmer than Y. the brightness of X will decrease. the brightness of X will be the same as Z. 3 / 5 3) The diagram below shows a thermistor connected in a circuit with two other resistors. What will be the changes in the ammeter and voltmeter readings when the temperature of the surrounding increases? Ammeter: Increases, Voltmeter: Unchanged Ammeter: Decreases, Voltmeter: Decreases Ammeter: Unchanged, Voltmeter: Increases Ammeter: Unchanged, Voltmeter: Unchanged 4 / 5 4) Which of the following symbols represents an LDR? D C B A 5 / 5 5) In which of the following circuits are the light bulbs not connected in parallel? Your score is Restart quiz