It is actually caused by the environment, so its false. :)
Answer:
<h3>true</h3>
Explanation:
<h3>hope it helps you ❤️</h3><h3>happy to help</h3>
Answer:
Given: V = 220V, Pmin = 360W, Pmax = 840W
For minimum heating case:
We know that
Pmin = VI
360 = 220 X I
I = 1.63 amp
R = V/I
R = 220/1.63
R = 134.96ohms
For maximum heating case:
We know that
Pmax = VI
840 = 220 X I
I = 3.81 amp
R = V/I
R = 220/3.81
R = 57.74 ohms
Between centre of curvature and principal focus.
