Revision: DC Circuits 16 DC Circuits - Revision Quiz Test your understanding of DC Circuits here: 1 / 5 1) An LDR is connected in the circuit as shown below. When no light falls on the LDR, its resistance is 3600 Ω. When the only light falling on the LDR comes from a small filament lamp, its resistance is 1200 Ω. Which of the following shows the readings on the voltmeter correctly? No light: 4.5 V, Light falls on LDR: 3.0 V No light: 0 V, Light falls on LDR: 6.0 V No light: 3.0 V, Light falls on LDR: 3.0 V No light: 6.0 V, Light falls on LDR: 0 V 2 / 5 2) The voltmeter in the circuit below shows a reading of 1.5 V. What is the value of the LDR? 1.5 Ω 4.5 Ω 1.0 Ω 3.0 Ω 3 / 5 3) The diagrams¬†show the symbols of three circuit components. Which of the following describes them correctly? D A C B 4 / 5 4) The sealed box contains some resistors in a certain arrangement. If the ammeter readings are as shown above, which of the following arrangement of resistors could be in the box? 5 / 5 5) Which of the following represents a thermistor? Your score is Restart quiz