read each question carefully write the letter of the correct answer on the blank before each number
1. why is the wire used in an electromagnet coiled?

A. it has more force
B. it makes the electromagnet stronger
C. it controls the field of attraction
D. it controls the flow of electricity

2. which of the following can make an electromagnet stronger?

A. adding more dry cells
B. using a core with a bigger diameter
C. increasing the number of turns in the Coil of Wire
D. All Of The Above

3. which of the following device make use electromagnet?

A. electric bell
B. electric buzzer
C. telephone
D. all of the given option

4. which one of the following is not a part of an electromagnet?

A. the wire coil
B. the nail as the core
C. the dry cell as the source of electricity
D. pins clips and needles tracted by the electromagnet

5. what happens when a part of an electromagnet is disconnected?

A. it loses its magnetism
B. electricity continues to flow through it
C. the electromagnet becomes a permanent magnet
D. there is an increase in the number of materials attracted

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