Answer:
5 degrees required for ice
D. The trend for first ionization energy
The following will increase the strength of a copper electromagnet;
Adding more loops to the wire
Increasing the current
Explanation:
An electromagnet, a device that transforms electric energy into magnetic energy, has its magnetic field induced by an electric current. This current must be AC (alternating current) and not Direct Current (D.C) for it to work. Increasing the number of coils in the electromagnet increases the number of field lines of interaction between the current and the paramagnetic material. Increasing the current also makes the magnetic stronger.
Learn More:
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