1. Which of the following can make an electromagnet stronger? A. Add more coils of wire to the nail. B. Use a smalier battery. C. Reverse the poles of the magnet. D. Remove all the coils and the nail.
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1.WHICH OF THE FOLLOWING CAN MAKE AN
A. ADD MORE COILS OF WIRE TO THE NAIL
B. USE A SMALLER BATTERY
C. REVERSE THE POLES OF THE MAGNET
D. REMOVE ALL THE COILS AND NAILS
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