| Name ___________________ # _____ |
Section ________ |
| St. Mary's Physics |
Date __________ |
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Analyzing Circuits
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1. In the circuit diagram shown below, ammeter A1
reads 10. amperes.  a) the current in ammeter A2 (hint - find RT, then VT , then I1) |
b) Total resistance =
c) potential difference of the source? |
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2. A 20.0-volt battery is connected to a 5.0-ohm resistor and a 15.0-ohm resistor as shown in the diagram below.
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a)
What is the current in the 15.0-ohm resistor?
b) What is the current in the 5.0-ohm resistor?
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Analyzing Circuits
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3. The diagram below represents an electric
circuit consisting of a 12-volt battery, a 3.0-ohm resistor, R1 , and a
variable resistor, R2 .
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a) At what value must the variable resistor be set to produce a current of 1.0 ampere through R1 ? |
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4. Base your answers to questions a
through c on the information and diagram below. A 20.-ohm resistor and a
30.-ohm resistor are connected in parallel to a 12-volt battery as shown.
An ammeter is connected as shown.
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a) What is the equivalent resistance of the circuit?
b) What is the current reading of the ammeter?
c) What is the power of the 30.-ohm resistor? |
Analyzing Circuits
|
5. Base your answers to questions a
through d on the circuit diagram below.
a) If switch S1 is open, the reading of ammeter A is
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b) If switch S1 is closed, the equivalent resistance of the circuit is
c) find the potential difference across the first resistor
d) find the potential difference across the second resistor
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6. The diagram below shows a circuit with two resistors.
a) What is the reading on ammeter A?
b) find the potential difference across the first and second resistor
V1 =
V2 = |
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Analyzing Circuits
|
7. |
b) What is the total current in this circuit? c) What is the potential difference across the first resistor?
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The diagram below shows a circuit with three
resistors.
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b) What
is the total resistance of the circuit?
c) What is the potential difference across the first resistor? d) What is the potential difference across the second resistor?
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