Question

In the experiment, why was using identical paper clips crucial for testing the electromagnet's strength accurately?

(1 point)

It makes the wire coils easier to wrap around the nail.

It allows the battery to supply a more powerful current.

It ensures each test used a consistent unit of measure.

It prevents the nail from becoming permanently magnetized.

Answer 1

It ensures each test used a consistent unit of measure.

Using identical paper clips keeps the load constant so differences in how many are picked up reflect the electromagnet's strength, not variations in clip size, weight, or shape.