Answer:
16.D
17.C
18.A
Explanation:
I tried-
A. Only one cell or battery
C. More pins
D. Electricity
A. Magnetic field
B. No change
D. Decrease
B. Magnet
C. Electricity
D. Dry cells
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Answers & Comments
Answer:
16.D
17.C
18.A
Explanation:
I tried-
➠ 16.) An electromagnet can be made stronger by________.
A. Only one cell or battery
C. More pins
D. Electricity
➠ 17.) When you use 2 or more batteries, then there is a/an________ in its current.
A. Magnetic field
B. No change
D. Decrease
➠ 18.) This is a temporary magnet that may be produced by making electricity flow through a wire coiled around a iron nail.
B. Magnet
C. Electricity
D. Dry cells