a. He can use a thicker piece of copper wire.
d. He can replace the 1.5-volt battery with a battery of higher voltage.
e. He can use a longer piece of wire that wraps more times around the bolt.
Using a thicker wire will reduce the resistance in the circuit, allowing more current to flow and increasing the strength of the magnetic field. Increasing the voltage of the battery will increase the current and consequently, the strength of the magnetic field. Using a longer wire that wraps more times around the bolt will also increase the number of turns in the coil, resulting in a stronger magnetic field. Reversing the orientation of the battery and replacing the iron rod with a wooden rod will not have a significant impact on the strength of the electromagnet.
Malik built a simple electromagnet with copper wire, an iron bolt, and a 1.5-volt battery. The electromagnet was able to lift a paper clip from 3 centimeters away. Select three ways Malik can improve the strength of his electromagnet.
a
He can use a thicker piece of copper wire.
b
He can reverse the orientation of the battery.
c
He can replace the iron rod with a wooden rod.
d
He can replace the 1.5-volt battery with a battery of higher voltage.
e
He can use a longer piece of wire that wraps more times around the bolt.
1 answer
1 answer