Question
Denver constructs an electric bell as shown in the diagram below.
He then turns the switch on to test the bell. Denver notices that the hammer moves a bit toward the gong, but does not quite reach the gong. Which of the following should Denver do to best increase the chances of making the bell ring?
A.
decrease the size of the gong and the number of coils around the electromagnet
B.
increase the current produced by the battery and the number of coils around the electromagnet
C.
increase the length of the arm supporting the hammer and use a heavier hammer
D.
decrease the size of the gong and use a larger hammer
He then turns the switch on to test the bell. Denver notices that the hammer moves a bit toward the gong, but does not quite reach the gong. Which of the following should Denver do to best increase the chances of making the bell ring?
A.
decrease the size of the gong and the number of coils around the electromagnet
B.
increase the current produced by the battery and the number of coils around the electromagnet
C.
increase the length of the arm supporting the hammer and use a heavier hammer
D.
decrease the size of the gong and use a larger hammer
Answers
GPT-4o mini
To increase the chances of making the electric bell ring effectively, Denver should aim to enhance the electromagnet's strength and the motion of the hammer toward the gong.
The best option from those provided is:
**B. increase the current produced by the battery and the number of coils around the electromagnet.**
Increasing the current through the electromagnet will increase its magnetic field, making it stronger. Also, increasing the number of coils around the electromagnet also increases the magnetic field strength. Both of these changes would increase the force exerted on the hammer, allowing it to travel further and strike the gong more effectively, thus making the bell ring.
The best option from those provided is:
**B. increase the current produced by the battery and the number of coils around the electromagnet.**
Increasing the current through the electromagnet will increase its magnetic field, making it stronger. Also, increasing the number of coils around the electromagnet also increases the magnetic field strength. Both of these changes would increase the force exerted on the hammer, allowing it to travel further and strike the gong more effectively, thus making the bell ring.