Physics, 14.10.2019 12:30 ishaanbaruah4474
Which of the following statements are true concerning the creation of magnetic fields? check all that apply.
a single stationary electric charge creates a magnetic field at all points in the surrounding region. a distribution of electric charges at rest creates a magnetic field at all points in the surrounding region. a moving electric charge creates a magnetic field at all points in the surrounding region. a permanent magnet creates a magnetic field at all points in the surrounding region. an electric current in a conductor creates a magnetic field at all points in the surrounding region.
Answers: 3
Physics, 22.06.2019 07:40
Which best describes how fluids change as they travel through different portions of the convection currents? they change to solids at the outer portion of the convection currents. they change to solids at the inner portion of the convection currents. they become more dense at the outer portion of the convection currents. they become more dense at the inner portion of the convection currents
Answers: 2
Physics, 22.06.2019 15:00
Consider a uniformly charged ring in the xy plane, centered at the origin. the ring has radius a and positive charge qdistributed evenly along its circumference. a)what is the direction of the electric field at any point on the z axis? . b)what is the magnitude of the electric field along the positive z axis? use k in your answer, where k=14πϵ0. d)the ball will oscillate along the z axis between z=d and z=−d in simple harmonic motion. what will be the angular frequency ω of these oscillations? use the approximation d≪a to simplify your calculation; that is, assume that d2+a2≈a2. express your answer in terms of given charges, dimensions, and constants
Answers: 2
Which of the following statements are true concerning the creation of magnetic fields? check all th...
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