How is an electromagnet different from a bar magnet?
Question 3 options:
a. Only a bar magnet has a magnetic field.
b. Only an electromagnet attracts materials made of iron.
c. An electromagnet is temporary and is magnetic when a current flows through a wire wrapped around the core.
d. A bar magnet is a temporary and is only magnetic when a current flows through a wire wrapped around the core.
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “How is an electromagnet different from a bar magnet? Question 3 options: a. Only a bar magnet has a magnetic field. b. Only an ...” in 📘 Physics 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 a force on an object increases how does the object's acceleration change?
Answers (1)
The rate of heat conduction out of a window on a winter day is rapid enough to chill the air next to it. To see just how rapidly windows conduct heat, calculate the rate of conduction in watts through a 2.82 m2 window that is 0.
Answers (1)
What type of rays are used to locate cavities in teeth? Radio waves, infrared rays, ultraviolet rays, microwaves, x-rays, or gamma rays
Answers (1)
What kinds of forces hold ionic solids together? Check all that apply. Check all that apply. dispersion forces metallic bonds covalent bonds electrostatic attraction dipole-dipole forces hydrogen bonds
Answers (1)
During a neighborhood baseball game in a vacant lot, a particularly wild hit sends a 0.148 kg baseball crashing through the pane of a second-floor window in a nearby building. The ball strikes the glass at 15.
Answers (1)
New Questions in Physics
What causes day and night on earth?
Answers (1)
A yo-yo can be thought of as a solid cylinder of mass m and radius r that has a light string wrapped around its circumference (see below). One end of the string is held fixed in space.
Answers (1)
Why is time an independent variable and position is a dependent variable in a position versus time graph
Answers (1)
A geologist estimates that a large boulder weighs 7840 N. What should he estimate the mass of this boulder to be? A. 650 kg B. 740 kg C. 780 kg D. 800 kg
Answers (1)
Two objects have the same momentum. Do the velocities of these objects necessarily have (a) the same directions and (b) the same magnitudes? Give your reasoning in each case.
Answers (1)