Which feature of electromagnets makes them more useful than permanent
magnets in many modern technologies?
O A. The current can be adjusted to control the strength of the
magnetic field.
B. The strength of the magnetic field is more consistent in
electromagnets.
O C. Electromagnets are not dependent on a power supply.
O D. Electromagnets cannot be turned on and off.
Answers: 2
Other questions on the subject: Physics
Physics, 22.06.2019 02:20, shadoris26
According to newton’s first law of motion, which force is expected to cause a body to accelerate?
Answers: 1
Physics, 22.06.2019 16:40, scully1442
Acapacitor is storing energy of 3 joules with a voltage of 50 volts across its terminals. a second identical capacitor of the same value is storing energy of 1 joule. what is the voltage across the terminals of the second capacitor?
Answers: 3
Physics, 23.06.2019 01:00, bendmads04
Formulating a hypothesis: part i since the investigative question has two variables, you need to focus on each one separately. thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? use the format of " because when writing your hypothesis
Answers: 1
Do you know the correct answer?
Which feature of electromagnets makes them more useful than permanent
magnets in many modern techno...
Questions in other subjects:
English, 01.03.2021 05:00
Mathematics, 01.03.2021 05:00
Mathematics, 01.03.2021 05:00
Mathematics, 01.03.2021 05:00
History, 01.03.2021 05:00
