Which two actions would weaken an electromagnet? O A. Replacing the steel core of the magnet with a plastic core
O B. Decreasing the number of wraps of wire
O c. Increasing the number of wraps of wire
OD. Replacing a 6 V battery with a 9 V battery
O E. Replacing the hollow core of the magnet with a steel core

A and B  (A. Replacing the steel core of the magnet with a plastic core and  B. Decreasing the number of wraps of wire)

Explanation: just took the test

a and b

Explanation:

a pex

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