Back to the full dot-point answer
WalesElectronicsQuick questions
Core Concepts
Quick questions on Input and output sub-systems: sensors, transducers and drivers - WJEC A-Level Electronics
3short Q&A pairs drawn directly from our worked dot-point answer. For full context and worked exam questions, read the parent dot-point page.
What is sensors in a potential divider?Show answer
If the sensor is the bottom resistor, the output rises as the sensor's resistance rises.
What is q1?Show answer
An LDR is the top resistor of a potential divider. State whether the output voltage rises or falls as the surroundings get darker, and explain why. [2 marks]
What is q2?Show answer
Give two reasons a transistor is used between a logic gate and a small DC motor. [2 marks]
Have a question we have not covered?
This dot-point answer is short enough that we have not extracted many short questions yet. Read the full dot-point answer or ask Mo, our study assistant, in the chat for follow ups.