Quick questions on Input sensors: LDR and thermistor - WJEC GCSE Electronics (3)

2short 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 q1?

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State what happens to the resistance of an NTC thermistor as it is cooled. [1 mark]

What is q2?

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An LDR (top arm) and a

1.0\,\text{k}\Omega

resistor (bottom, output) are across

6.0\,\text{V}

. In bright light the LDR is

1.0\,\text{k}\Omega

. State the output voltage.

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