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Unformatted text preview: te everything down in your lab notebook as you
perform each step. Don’t miss anything out! V
A R Using the above diagram as a guide, construct a series circuit using a ∼ 5 volt dc source
as the power supply and one of the resistors provided as the load. What is the value of
the resistance according to the colour code? A represents a digital multimeter conﬁgured to
measure current. Use the digital multimeter to obtain accurate values for:
1. the load resistance. Does this agree with the value indicated by the colour code?
2. the source voltage,
3. the voltage across the resistor. Do you expect this to be the same as the source voltage?
If not, why not?
4. the current in the circuit (in mA).
Determine also the uncertainty in each measurement. According to Ohm’s Law, the ratio
of voltage to current will be equal to the load resistance. How well does your data comﬁrm
this? Increase the source voltage to ∼ 12 volts dc and repeat the above measurements. 10 Resistors in Series and...
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- Winter '14