Difference between revisions of "1.4 (h)"
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Charging a capacitor. In order to collect data to show the link between charge and current, it is possible to charge a capacitor up using a cell. The current is measured using a nanoammeter and is controlled using a resistor. The capacitor is a nanocoulombmeter and so both the current and charge can be measured; the charge should be measured every 5 seconds. Data should be measured for different currents | Charging a capacitor. In order to collect data to show the link between charge and current, it is possible to charge a capacitor up using a cell. The current is measured using a nanoammeter and is controlled using a resistor. The capacitor is a nanocoulombmeter and so both the current and charge can be measured; the charge should be measured every 5 seconds. Data should be measured for different currents | ||
===Resources=== | ===Resources=== | ||
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1x cell, 1x nanocoulombmeter, 1x nanoammeter, 1x s.p.d.t. switch, 1x variable resistor, 1x stopwatch | 1x cell, 1x nanocoulombmeter, 1x nanoammeter, 1x s.p.d.t. switch, 1x variable resistor, 1x stopwatch | ||
===Safety=== | ===Safety=== | ||
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| + | [[Motion, Energy & Charge]] | ||
Revision as of 10:35, 26 August 2008
Demonstration 1
Charging a capacitor. In order to collect data to show the link between charge and current, it is possible to charge a capacitor up using a cell. The current is measured using a nanoammeter and is controlled using a resistor. The capacitor is a nanocoulombmeter and so both the current and charge can be measured; the charge should be measured every 5 seconds. Data should be measured for different currents
Resources
Analysis
Plot a graph of charge against time for the different currents.
Equipment
1x cell, 1x nanocoulombmeter, 1x nanoammeter, 1x s.p.d.t. switch, 1x variable resistor, 1x stopwatch
