Objectives:
1. For the student to investigate the characteristics of a series circuit.
2. For the student to verify experimentally, using measured and calculated values, the following series circuit rules:
a. Total circuit resistance equals the sum of the individual resistances.
b. The current is the same at all points in a series circuit.
c. The sum of the voltage drops equals the source voltage.
For the student to determine the effects of changing a resistor value, upon total resistance, current and distribution of
voltage drops.
Equipment Required
• Meters: Milliammeter
• Power Supply: (0 to 20.0V DC)
• Resistors: 1 - 3.3 kW, 1 - 2.2 kW, 2 - 1.2 kW
Information:
1. NEVER use an ohmmeter on a live circuit. Voltage from a circuit can damage an ohmmeter.
2. Always use the measured value of resistance for all calculations.
3. Always adjust the power supply voltage with the circuit connected.
4. When measuring voltage, the voltmeter must be connected across the circuit.
5. When measuring current, you must break the circuit and the current meter must be inserted into the circuit (in
series).
1. For the student to investigate the characteristics of a series circuit.
2. For the student to verify experimentally, using measured and calculated values, the following series circuit rules:
a. Total circuit resistance equals the sum of the individual resistances.
b. The current is the same at all points in a series circuit.
c. The sum of the voltage drops equals the source voltage.
For the student to determine the effects of changing a resistor value, upon total resistance, current and distribution of
voltage drops.
Equipment Required
• Meters: Milliammeter
• Power Supply: (0 to 20.0V DC)
• Resistors: 1 - 3.3 kW, 1 - 2.2 kW, 2 - 1.2 kW
Information:
1. NEVER use an ohmmeter on a live circuit. Voltage from a circuit can damage an ohmmeter.
2. Always use the measured value of resistance for all calculations.
3. Always adjust the power supply voltage with the circuit connected.
4. When measuring voltage, the voltmeter must be connected across the circuit.
5. When measuring current, you must break the circuit and the current meter must be inserted into the circuit (in
series).
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