A student places an insulated copper wire between the poles of a horseshoe magnet student observes the wire bending away from the poles of a magnet the student claims there is a field that exist between the wire in magnet which statement best supports the students claim

The membrane surrounding a living cell consists of an inner and an outer wall that are separated by a small space. assume that the membrane acts like a parallel plate capacitor in which the effective charge density on the inner and outer walls has a magnitude of 7.0 × 10-6 c/m2. (a) what is the magnitude of the electric field within the cell membrane? (b) find the magnitude of the electric force that would be exerted on a potassium ion (k+; charge = +e) placed inside the membrane.

What are atoms of the same element with varying number of neutrons

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