Predict what would happen to the strength of the electromagnet in each situation.

Question

Revolt · Accepted Answer

Using a battery with a higher voltage::

stronger force of attraction

Wrapping the wire around the nail only three times::

weaker force of attraction

Changing the direction of the current by reversing the battery connections::

no change

Using a plastic stick in place of the iron nail::

weaker force of attraction

Holding the nail vertically rather than horizontally::

no change

Lab: Magnetic and Electric Fields