Instructions: Select the correct answer.
An electromagnet is a device in which moving electric charges (current) in a coil of wire create a magnet.
What's one advantage of using electromagnets in devices?
A. Electromagnets have a strong, constant magnetic field.
B. Electromagnets are more powerful than permanent magnets.
C. Electromagnets don't need a source of electricity to work.
D. Electromagnets can easily be turned on and off.
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “Instructions: Select the correct answer. An electromagnet is a device in which moving electric charges (current) in a coil of wire create a ...” in 📘 Chemistry if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time
Answers (1)
The reaction P4 + 5O2 → P4O10 + 712 kcal is exothermic. True False
Answers (1)
What mass of ni2 is produced in solution by passing a current of 67.0 a for a period of 12.0 h, assuming the cell is 85.0 % efficient?
Answers (1)
How many protons and neutrons are in the following isotope radium-226
Answers (1)
When atomic orbitals of two nuclei overlap, the mutual attraction between a negatively charged electron pair and the two positively charged nuclei forms: (A) a covalent bond (B) an ionic bond (C) an orbital bond (D) none of the above
Answers (1)
New Questions in Chemistry
What evidence do you have that the slope of the natural logarithm plot will be the same for all ions of the same charge, and not just for the ions you investigated?
Answers (1)
How many Oxygen elements are in a carboxylic acid
Answers (1)
The number of protons in the nucleus Of an Atom is equivalent to which of the following
Answers (1)
What does pH measure? number of hydrogen atoms in an acid number of hydroxide atoms in a base concentration of hydrogen ions in solution concentration of hydroxide ions in solution
Answers (1)
Based on charles's law, which of the following statements is true for an ideal has at a constant pressure and mole amount? A. The number of collisions is independent of volume B. The number of collisions decreases with increase in volume C.
Answers (1)