Does the size of a 1,5V cell(battery) affect the internal resistance of a circuit containing: 3 different size batteries,multimeter,connecting wire,a light bulb resistor.How do i set up this experiment.I'm really lost, please help. Thank you in advance
12th grade does not help for the School Subject. If you post what it truly is, you will get the right person to help.
Sra
To determine whether the size of a 1.5V cell (battery) affects the internal resistance of a circuit, you can set up the following experiment:
Materials needed:
1. Three batteries of different sizes (but all with the same voltage rating of 1.5V)
2. A multimeter to measure voltage and current
3. Connecting wires or breadboard
4. A light bulb resistor (or any other load resistor)
5. A switch (optional, for convenience)
Experiment setup:
1. Begin by placing the batteries side by side, ensuring that the positive terminal of one battery is connected to the negative terminal of the next battery using connecting wires or a breadboard.
2. Connect one terminal of the multimeter to the positive terminal of the first battery and the other terminal to the negative terminal of the last battery in the series.
3. Connect the other end of the last battery to one terminal of the light bulb resistor.
4. Connect the other terminal of the resistor back to the negative terminal of the first battery.
5. Optionally, you can add a switch in between the light bulb resistor and the batteries for convenience.
6. Ensure that all connections are secure and tight.
Now, you are ready to conduct the experiment:
1. Turn on the circuit by closing the switch (if included).
2. Measure the voltage across the entire battery series using the multimeter connected as described above.
3. Measure the current flowing through the circuit by connecting the multimeter in series with the batteries and resistor. To do this, disconnect one end of the connecting wire/resistor and place the multimeter leads in between.
4. Repeat the measurements for each different-sized battery.
5. Record the values of voltage and current for each battery.
Analyzing the results:
By comparing the voltage and current measurements for each battery, you can determine whether the size of the 1.5V cell affects the circuit's internal resistance.
If the internal resistance is affected by the battery size, you would expect to see variations in the current readings for each battery, even though the voltage remains the same. A higher internal resistance would result in a lower current.
By conducting this experiment, you can gather empirical evidence to identify whether there is any correlation between battery size and internal resistance in the circuit and draw your conclusions accordingly.