Research Question: - How does the length of a wire affect the resistance of the circuit? Hy pothesis If the length of the wire increases, then the resistance will also increase. Variables being tested: Independent variable: Length of the wire Dependent variable:Resistance Controlled variable: Temperature - Ensure that the temperature remains constant throughout the experiment, as it can affect the resistance of the wire. Material of the wire - Use the same type of wire for all measurements to maintain consistency. Potential difference (volts)- Keep the potential difference across the wire constant to eliminate its influence on the results. Materials The list of materials used in the lab includes a power supply.meter stick, wire, alligator clips, cables, data table, voltage readings, and current readings. Procedure To collect data in this experiment, I followed these steps: Begin by ensuring that the power supply is turned off for safety purposes. Connect the alligator clips to the wire on the meter stick and carefully record the length of the wire on the provided data table. Set the power supply voltage to 2 volts before turning it on . Once the voltage is set, turn on the power supply to provide the necessary electrical current. Collect the voltage and amperes readings directly from the power supply. There is no need to connect additional meters such as an ammeter or voltmeter. Record the collected voltage and amperes readings accurately for further analysis and interpretation.

Question

Research Question: - How does the length of a wire affect the resistance of the circuit? Hy pothesis If the length of the wire increases, then the resistance will also increase. Variables being tested: Independent variable: Length of the wire Dependent variable:Resistance Controlled variable: Temperature - Ensure that the temperature remains constant throughout the experiment, as it can affect the resistance of the wire. Material of the wire - Use the same type of wire for all measurements to maintain consistency. Potential difference (volts)- Keep the potential difference across the wire constant to eliminate its influence on the results. Materials The list of materials used in the lab includes a power supply.meter stick, wire, alligator clips, cables, data table, voltage readings, and current readings. Procedure To collect data in this experiment, I followed these steps: Begin by ensuring that the power supply is turned off for safety purposes. Connect the alligator clips to the wire on the meter stick and carefully record the length of the wire on the provided data table. Set the power supply voltage to 2 volts before turning it on . Once the voltage is set, turn on the power supply to provide the necessary electrical current. Collect the voltage and amperes readings directly from the power supply. There is no need to connect additional meters such as an ammeter or voltmeter. Record the collected voltage and amperes readings accurately for further analysis and interpretation.

Answer 1

The length of the wire in a circuit directly affects the resistance. As the length of the wire increases, the resistance in the circuit also increases, as confirmed by the experiment and Ohm's law.

Answer 2

The question is asking about the relationship between the length of a wire and the resistance in a circuit. The hypothesis states that if the length of the wire increases, then the resistance will also increase. This is based on Ohm's law, which states that the resistance (R) in a circuit is equal to the voltage (V) divided by the current (I), or R = V/I. The experiment involves changing the length of the wire (independent variable) and measuring the resistance (dependent variable), while keeping other factors such as temperature, material of the wire, and potential difference constant. The procedure involves setting up the circuit with a power supply, a meter stick, a wire, alligator clips, and cables. The length of the wire is carefully measured and recorded. The power supply is set to 2 volts and then turned on to provide the necessary electrical current. The voltage and amperes readings are collected directly from the power supply and recorded for further analysis and interpretation.To determine the resistance, we use Ohm's law. We divide the voltage reading by the current reading. For example, if the voltage reading is 2 volts and the current reading is 0.5 amperes, the resistance would be R = V/I = 2/0.5 = 4 ohms. If we increase the length of the wire and repeat the experiment, we would expect the resistance to increase. For example, if the voltage reading remains at 2 volts but the current reading decreases to 0.4 amperes due to the increased length of the wire, the resistance would be R = V/I = 2/0.4 = 5 ohms. This confirms the hypothesis that increasing the length of the wire increases the resistance in the circuit.

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