You need to know the specific heat capacity of air.
Then energy needed = 0.005 x sp.heat.cap x 10
Answer:
Explanation:
Current, I = 6 A
diameter of wire, d = 2.05 mm
number of electrons per unit volume, n = 8.5 x 10^28
If the diameter is doubled,
The resistance of the wire is inversely proportional to the square of the diameter of the wire, so the resistance is one forth an the current is directly proportional to the diameter of the wire so the current is four times the initial value.
4896
0.85 x 45 x 128 = 4896
Change in energy = specific heat capacity x mass x change in temperature
