What is the magnitude and direction of the magnetic field

Reference no: EM134765

Question1

Two long insulated wires lie in the identical horizontal plane. A current of I = 17.0 A flows toward the north in wire A and a current of 10.0 A flows toward the east in wire B. What is the magnitude and direction of the magnetic field at a point that is h = 4.00 cm above the point where the wires cross.

Question2

A thin layer of magnesium fluoride (n = 1.38) is used to coat a flint-glass lens (n = 1.61). What least thickness should the magnesium fluoride film have if the reflection of 607 nm light is to be suppressed? Imagine that the light is incident at right angles to the film.

Reference no: EM134765

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