Electric Circuits These flashcards cover all the aspects on circuits in the Electricity topic. 0.0 / 5 ? PhysicsElectricityGCSEAQA Created by: 123Created on: 17-11-20 19:22 How are components shown? By circuit symbols. 1 of 13 What are the two rules you must follow when drawing wires in an electrical circuit? 1. There should be no breaks in the lines. 2. The wires do not pass through the components. 2 of 13 What's a diode? A component that only allows current to flow through it in one direction. 3 of 13 What's a rectifier? A component that turns an alternating current into direct current. 4 of 13 What is a thermistor? A component that resistance changes with its temperature. 5 of 13 How does increasing the temperature effect the resistance? It decreases it. 6 of 13 What is an LDR (light dependent resistor)? A component which resistance changes with light intensity. 7 of 13 How does increasing light intensity effect the resistance? It decreases it. 8 of 13 What is a series circuit? A circuit that has all its components attached onto the same line. 9 of 13 What is the current like in a series circuit? It is the same at any point in the series circuit. 10 of 13 How is the total resistance calculated in a series circuit? Add up all the individual resistor values. 11 of 13 What do resistors do to the flow of electrical current? All the resistors oppose the flow of the electrical current through the circuit. 12 of 13 How is the total potential difference calculated in a series circuit? Add up the individual voltages. 13 of 13
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