Use the table of information about four electromagnets to answer the question.
Electromagnet Current Intensity Number of Turns in the Wire
W medium 10
X low 10
Y medium 50
Z low 50
Which electromagnet will produce the strongest magnetic force?
(1 point)
Responses
electromagnet Z
electromagnet Z
electromagnet Y
electromagnet Y
electromagnet W
electromagnet W
electromagnet X
electromagnet Y
A student connects a battery to a wire and wraps the wire around an iron nail to produce an electromagnet. Which action should the student take to increase the number of paper clips the electromagnet can pick up?(1 point)
Responses
He should replace the iron nail with a plastic spoon.
He should replace the iron nail with a plastic spoon.
He should decrease the current through the wire.
He should decrease the current through the wire.
He should reduce the number of turns.
He should reduce the number of turns.
He should add another battery.
He should add another battery.
He should add another battery.
Which factors directly affect the magnetic force produced by an electromagnet?(1 point)
Responses
amount of current, type of force
amount of current, type of force
amount of current, length of core
amount of current, length of core
length of core, number of turns in the wire
length of core, number of turns in the wire
number of turns in the wire, amount of current
number of turns in the wire, amount of current
Two electromagnets are made with the same core and the same type of wire. Electromagnet A has a low-intensity current, and electromagnet B has a high-intensity current. Which statement about the electromagnets is correct?(1 point)
Responses
If they produce the same strength magnetic force, then they must have the same number of turns in the wire.
If they produce the same strength magnetic force, then they must have the same number of turns in the wire.
If they have the same number of turns in the wire, then electromagnet A has a stronger magnetic force.
If they have the same number of turns in the wire, then electromagnet A has a stronger magnetic force.
If they have the same number of turns in the wire, then they must have the same strength magnetic force.
If they have the same number of turns in the wire, then they must have the same strength magnetic force.
If they produce the same strength magnetic force, then electromagnet A has more turns in the wire.
If they produce the same strength magnetic force, then electromagnet A has more turns in the wire.
If they produce the same strength magnetic force, then they must have the same number of turns in the wire.
What produces the magnetic force of an electromagnet?(1 point)
Responses
static charged particles on the wire
static charged particles on the wire
positive and negative charges repelling each other
positive and negative charges repelling each other
magnetic fields passing through the device
magnetic fields passing through the device
movement of charged particles through the wire
movement of charged particles through the wire
To determine which electromagnet will produce the strongest magnetic force, you need to consider the factors that affect the magnetic force. In this case, the two factors to consider are the current intensity and the number of turns in the wire.
A higher current intensity generally results in a stronger magnetic field, while more turns in the wire also increase the magnetic field.
Let's analyze each electromagnet:
- Electromagnet W has a medium current intensity and 10 turns in the wire.
- Electromagnet X has a low current intensity and 10 turns in the wire.
- Electromagnet Y has a medium current intensity and 50 turns in the wire.
- Electromagnet Z has a low current intensity and 50 turns in the wire.
Comparing the current intensity of W and X, W has a higher current intensity, so it will produce a stronger magnetic field if the number of turns in the wire is the same. However, both electromagnets W and X have the same number of turns in the wire (10).
Comparing the current intensity of Y and Z, both electromagnets have the same current intensity (medium), but Z has more turns in the wire than Y. Thus, electromagnet Z will produce a stronger magnetic force than Y.
Therefore, the electromagnet that will produce the strongest magnetic force is electromagnet Z.