How can electrical energy be transformed into mechanical energy within a magnetic field

When a wire with a current is placed in a magnetic field, electrical energy is transformed into mechanical energy. The transformation happens when the magnetic field produced by the current causes the wire to move. ... Inside a Galvanometer – The rotation of a wire loop in a magnetic field is the basis of a galvanometer.

Explanation:

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answer: the rock sample is a sedimentary rock.

explanation:

it is given that:

mass of rock sample, m = 2.7 g

volume of rock sample,

so, density of rock sample will be

since, the density of rock sample is . hence, the rock sample is a sedimentary rock, whose densities varies between .