Physics

Problem

The two rails of a rail–gun arrangement are

0.50\,\text{m}

apart and connected through a

1.5\,\Omega

resistor. A conducting rod is pulled along the rails with a steady speed of

5.0\,\text{m\,s}^{-1}

in a region where a uniform magnetic field of

0.30\,\text{T}

is directed vertically downward. Neglecting friction, determine the magnitude of the horizontal force that must be applied on the rod to keep its speed constant. a)

0.15\,\text{N}

0.0375\,\text{N}

0.075\,\text{N}

0.30\,\text{N}

Browse the problem library