The layer of electrically charged molecules and atoms which spans 40-250 miles above ground called ionosphere causes the display of the aurora and the reflection of radio waves back to earth.
Answer:
a Charge flows along a complete conducting path
Explanation:
Answer:
-1486 KJ
Explanation:
The work done by an electric field on a charged body is:
W = ΔV * q
where ΔV = change in voltage
q = total charge
The total charge of Avogadro's number of electrons is:
6.0221409 * 10^(23) * -1.6023 * 10^(-19) = -9.65 * 10^(4)
The change in voltage, ΔV, is:
9.20 - (6.90) = 15.4
Therefore, the work done is:
W = -9.65 * 10^(4) * 15.4 = -1.486 * 10^6 J = -1486 KJ
The negative sign means that the motion of the electrons is opposite the electrostatic force.
Answer:
The resistance is 
Explanation:
From the question we are told that
The voltage rating of the headlamp is 
The voltage of the power system is 
The power rating of the headlamp is 
Generally the power which the resistor dissipates is mathematically represented as

=> 
=> 
Generally the resistance is



Answer:
you have to match the letters in the picture to the list of energy types