Which statements are true about moving the compass around the wire? Check all that apply.
Which are potential sources of error in the experiment? Check all that apply.variable amounts of metal and magnetic properties of a materialholding the compass at an anglethe color of the bar magnetunseen magnetic fields (such as from an electrical appliance)the brand of light bulb used in the circuitusing a dead battery in the circuit
Which are ways to improve the design of this experiment? Check all that apply.Record data only at the very end to save time.Experiment with a wider range of materials.Use more legible handwriting when recording data.Use a laboratory galvanometer to make precise measurements.Test the strength of the electromagnet by varying the number of wire coils.
stronger force of attraction✔ weaker force of attractionno change
✔ compasselectronic balancegalvanometer
✔ They will attract each other.They will repel each other.There will be no effect.
stronger force of attractionweaker force of attraction✔ no change
✔ galvanometerelectronic balancethermometer
A✔ Bboth
parallel✔ perpendicularat a 45-degree angle
stronger force of attraction✔ weaker force of attractionno change
same✔ oppositemagnetic north
✔ magnetwindlight source
Predict what would happen to the strength of the electromagnet in each situation.
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