Look at the data table and graph for the 25-coil electromagnet. With the 1.5 V battery, theelectromagnet picked up an average of 6 paper clips, and with the 6.0 V battery, it picked upan average of 23 paper clips.a. About how many times stronger than the 1.5 V battery is the 6.0 V battery?b. What is the approximate ratio of the number of paper clips picked up using the 6.0 Vbattery to the number picked up using the 1.5 V battery?c. Is this a direct relationship or an indirect relationship?4 times 3.83 times
Question
Look at the data table and graph for the 25-coil electromagnet. With the 1.5 V battery, theelectromagnet picked up an average of 6 paper clips, and with the 6.0 V battery, it picked upan average of 23 paper clips.a. About how many times stronger than the 1.5 V battery is the 6.0 V battery?b. What is the approximate ratio of the number of paper clips picked up using the 6.0 Vbattery to the number picked up using the 1.5 V battery?c. Is this a direct relationship or an indirect relationship?4 times 3.83 times
Solution
a. The 6.0 V battery is approximately 4 times stronger than the 1.5 V battery. This is because 6.0 divided by 1.5 equals 4.
b. The approximate ratio of the number of paper clips picked up using the 6.0 V battery to the number picked up using the 1.5 V battery is 23 to 6, or approximately 3.83 to 1. This is calculated by dividing 23 by 6, which equals 3.83.
c. This is a direct relationship. As the voltage of the battery increases, the number of paper clips the electromagnet can pick up also increases.
Similar Questions
Look at the data table and graph for the 50-coil electromagnet. With the 1.5 V battery, theelectromagnet picked up an average of 13 paper clips, while the 25-coil electromagnet pickedup an average of 6 paper clips.a. What is the ratio of the number of turns of the 50-turn electromagnet to the number ofturns of the 25-coil electromagnet?b. What is the approximate ratio of the number of paper clips picked up by the 50-coilelectromagnet?3. What does doubling the number of coils do to the strength of the electromagnet?4. What does doubling the voltage do to the strength of the electromagnet?5. Using the graph, predict how many paper clips a 7.5 V battery would pick up for both the 25-coil electromagnet and the 50-coil electromagnet.6. Calculate the slope of the 25-coil line and the 50-coil line to determine the average number ofpaper clips that a 1 V battery would pick up.
Analyze the factors that affect the strength of an electromagnet.
How does the number of turns affect the strength of the electromagnet?a.Independentb.Indirectlyc.Directly
The figure shows a simple electromagnet made of a coil of insulated wire wrapped around an iron nail.When the switch closed, which of the following will make this electromagnet stronger? (i) increasing the number of coils(ii) adding more turns to the coil(iii) increasing the direct current flowing through the coil(iv) changing the direct current flowing through the coil to alternating current.*1 pointii, iiii, ii, iiiii onlyiii only
Which of the following shows how to decrease the strength of an electromagnet?Group of answer choicesadd iron center to the coilincrease the number of loops of wire in the coildecrease the number of loops of wire in the coil
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