Electric Circuits Answers

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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.