Explore BrainMass

# Physics

This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

1. The current that flows through an incandescent light bulb immediately after it is turned on is higher than the current that flows moments later. Why?

2. The Earth's magnetic field lines are not parallel to its surface except in certain places. They actually "dip" downward at some angle to the ground. (An ordinary compass does not show this).
a) At what places of the Earth would the "magnetic dip" be the greatest?
b) Where on the Earth would the dip be zero?

https://brainmass.com/physics/solar-system/physics-currents-magnetic-fields-260030

#### Solution Preview

1. The current that flows through an incandescent light bulb immediately after it is turned on is higher than the current that flows moments later. Why?

The resistivity of a conductor increases with Temperature. When a current flows through an incandescent light bulb, its temperature increases (Thermal effect ...

#### Solution Summary

This solution helps with physics problem involving physics problems. The concepts covered include currents and magnetic fields. Brief explanations are given for each problem.

\$2.19