Difference between revisions of "1.6 (e)"
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(New page: =Class Experiment= By having a LDR and a resistor in series, the pupils investigate using an ammeter and voltmeter, how the resistance and p.d. across a component are linked to the total r...) |
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By having a LDR and a resistor in series, the pupils investigate using an ammeter and voltmeter, how the resistance and p.d. across a component are linked to the total resistance and potential difference. | By having a LDR and a resistor in series, the pupils investigate using an ammeter and voltmeter, how the resistance and p.d. across a component are linked to the total resistance and potential difference. | ||
===Resources=== | ===Resources=== | ||
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===Safety=== | ===Safety=== | ||
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The pupils predict how the Vout for a thermistor will vary with temperature, when in series with a resistor. They then take data to check their predictions. | The pupils predict how the Vout for a thermistor will vary with temperature, when in series with a resistor. They then take data to check their predictions. | ||
===Resources=== | ===Resources=== | ||
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===Safety=== | ===Safety=== | ||
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An LDR is in series with a resistor. Across the LDR is placed a diode and motor. The pupils are asked to predict what will happen. | An LDR is in series with a resistor. Across the LDR is placed a diode and motor. The pupils are asked to predict what will happen. | ||
===Resources=== | ===Resources=== | ||
Latest revision as of 10:40, 26 August 2008
Contents
Class Experiment 1
By having a LDR and a resistor in series, the pupils investigate using an ammeter and voltmeter, how the resistance and p.d. across a component are linked to the total resistance and potential difference.
Resources
Analysis
Equipment
Safety
Class Experiment 2
The pupils predict how the Vout for a thermistor will vary with temperature, when in series with a resistor. They then take data to check their predictions.
Resources
Analysis
Plot a graph of Vout against temperature.
Equipment
Safety
Demonstration 1
An LDR is in series with a resistor. Across the LDR is placed a diode and motor. The pupils are asked to predict what will happen.
Resources
Analysis
Mathematical values of I and p.d. are required to see when the motor starts to work.
