Recorded data of measure the voltage across each light bulbs and current on each wire. Base on the experiment data, the voltage of the battery is the sum of the voltage across the bulbs; the current is constant anywhere in the series circuits.
Activity 2: Parallel Circuits
Recorded data of measure the voltage across each light bulbs and current on each wire. Within the reasonable uncertainty of the meter, the voltage is constant in parallel circuits; the current is inverse proportional between junction and wires.
Summary of activity 1 and 2
Summary of voltage/current in series/parallel circuits.
Activity 3: Decoding and Measuring Resistors
Apparatus: 4 band code resistor and 5 band code resistor(blue).
Determining the resistance by reading the color bands on the resistors.
The table of resistors color coding.
Follow the color code of resistors to calculate the resistance
Comparing the measured resistance and reading value. There are 99% accurate in the 4 bands resistor and 97% accurate in the 5 bands resistor.
Activity 4: The Equivalent Resistance for a Network
.jpg)
Example of simplifying the graph of circuit by combining the resistors.
Calculated and measured value of total resistance in the network.
The combination of resistors represent as the network show in previous picture.
.jpg)
Using the multimeter to measure the resistance in the network.
Summary:
Base on the result of our experiments of resistance, there is direct proportional relationship in series connection; inverse proportional relationship in parallel connection.
Base on the result of our experiments of resistance, there is direct proportional relationship in series connection; inverse proportional relationship in parallel connection.
No comments:
Post a Comment