DC Panel

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DC Panel
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DC CIRCUITS

• Series and parallel resistors
• Kirchhoffs Rules for network problems
• Electrical meters and household circuits
• R-C circuits

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Learning Goals - we will learn How to simplify
resistors connected in a circuit in series and in
parallel. How to simplify and analyze more
complicated networks using Kirchhoffs Rules.
R-C circuits
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Resistors connected in a circuit in series or
parallel can be simplified using the following
Series connection
Parallel connection
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Calculate the total resistance of each box if
each bulb has a resistance of 1000 Ohms (?).
C 1998 McDermott, et al., Prentice Hall
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Method of simplifying the circuit in (a) below to
get the equivalent resistance. We can then
calculate the power P I2 R dissipated in each
resistor.
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ELECTRICAL MEASURING INSTRUMENTS METERSA
dArsonval galvanometer meter movement
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AMMETERS have a very small shunt resistor in
them to reduce the effect of introducing the
meter resistance into the circuit being
measured.VOLTMETERS (?V) have a very large
series resistor in them to reduce the amount of
current drawn from the circuit being measured.
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House wiring circuits
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Hand drill circuit with ground wire for safety
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