Force on a Wire: For the horseshoe magnet shown in the figure, the left end is a north magnetic pole and the right end is a south magnetic pole. When the switch is closed in the circuit, which way will the wire between the poles of the horseshoe magnet initially deflect?

A. to the right
B. to the left
C. upward
D. downward


Answer: D

Physics & Space Science

You might also like to view...

A 72.0-kg person pushes on a small doorknob with a force of 5.00 N perpendicular to the surface of the door. The doorknob is located 0.800 m from axis of the frictionless hinges of the door

The door begins to rotate with an angular acceleration of 2.00 rad/s2. What is the moment of inertia of the door about the hinges? A) 4.28 kg ? m2 B) 7.52 kg ? m2 C) 1.88 kg ? m2 D) 0.684 kg ? m2 E) 2.74 kg ? m2

Physics & Space Science

By what mechanism does solar energy reach the Sun's photosphere from the layer just underneath it?

A) differentiation B) ionization C) radiation D) convection E) conduction

Physics & Space Science

Adaptive optics measures and cancels out all seeing distortions that are caused by turbulence in Earth's atmosphere

a. True b. False Indicate whether the statement is true or false

Physics & Space Science

Intensity: Why does the intensity of waves from a small source decrease with the square of the distance from the source?

A. The waves run out of energy as they travel. B. The waves spread out as they travel. C. The medium through which the waves travel absorbs the energy of the waves. D. The waves slow down as they travel away from the source. E. The frequency of the waves decreases as they get farther from the source.

Physics & Space Science