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Research on Magnetic Flux Density - Coggle Diagram
Research on Magnetic Flux Density
Variables
Independent Variables:
Presence of an iron core
Magnitude of current
Number of coil turns
Controlled Variables:
Constant power supply voltage
Consistent environmental conditions (e.g., temperature)
Dependent Variable
Magnetic field strength
Introduction
Principles of Solenoid Physics
Influence of coil turns and the presence of an iron core
Relationship between current and magnetic field
Factors Affecting Magnetic Field Strength at One End of an Energized Solenoid
Magnitude of current
Number of coil turns
Presence of an iron core
Length of the solenoid
Hypothesis
The magnetic field strength of a solenoid is influenced by
Presence of an iron core
Number of coil turns
Magnitude of current
Materials
Solenoid
Wires
Iron core
Switch
Tesla meter (for measuring magnetic flux density)
Ammeter
Sliding rheostat
Portable power supply
Pen and paper (for data recording)
Hollow cylinder (made of hard cardboard)
Voltmeter
Data Recording
Voltage (V)
Magnetic field strength (mT) under various conditions
Current (A)
Experimental Evaluation
Error Analysis:
Manual operation errors
Environmental interferences
Instrumental errors
Improvement Measures:
Instrument calibration
Use of iron core insertion tools
Optimization of experimental environment
Data Analysis and Interpretation
Experiment 2: Correlation between current magnitude and magnetic field strength
The current is approximately proportional to the magnetic field intensity.
Experiment 3: Effect of coil turns on magnetic field strength
The number of turns significantly and proportionally affects magnetic field strength,
Experiment 1: Impact of iron core presence on magnetic field strength
The magnetic field is enhanced significantly and the effect is stable.
Experimental Procedures
Experiment 2: Relationship Between Magnetic Field Strength and Current Magnitude
Measurements at varying current levels
Experiment 3: Relationship Between Magnetic Field Strength and Number of Coil Turns
Measurements with solenoids of different coil turns
Experiment 1: Relationship Between Magnetic Field Strength and Presence of Iron Core
Setup and measurements with and without the iron core