Question: a A Light dependent resistor (LDR) is a useful component in sensor circuits. Describe the key features of an LDR. (2 marks) b The circuit

a A Light dependent resistor (LDR) is a useful component in sensor circuits. Describe the key features of an LDR. (2 marks) b The circuit below can be used as a lightmeter. 6.0 V F-- 10 kQ (i) The maximum value of resistance of the light dependent resistor (LDR) is 950 /$2. What is the reading on the voltmeter for this resistance? (2 marks) (ii) The minimum value of resistance of the LDR is 1.0 kQ. What is the reading on the voltmeter for this resistance? (2 marks) c For this lightmeter, the voltmeter is connected across the 10 $ resistor, rather than the LDR. Explain Time left how the readings on the voltmeter enable this circuit to be used as a lightmeter. 2:08:4

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