"A Nichrome heater dissipates 500 W when the appliedpotential difference is 110 V and the wire temperature is 800 C. What would be the dissipation rate if the wire temperature wereheld at 200 C by immersing the wire in a bath of cooling oil? Theapplied potential difference remains the same, and afor Nichromeat 800 C is 4.0104K1"

the aurora is formed when charged particles emitted from the sun during a solar flare penetrate the earth's magnetic shield and collide with atoms and molecules in our atmosphere. these collisions result in countless little bursts of light, called photons, which make up the aurora.

auroras are generated by charged solar particles hitting molecules in earth's atmosphere. this usually happens in high latitudes, because our planet’s magnetic field tends to funnel these particles toward the poles. that’s why it can be experienced in northern ohio.