Answer:
U0/2
Explanation:
The potential energy stored by a capacitor is given by:
(1)
where
C is the capacitance
V is the potential difference applied across the capacitor
The capacitance of the parallel plate capacitor, at the beginning, is given by
where is the permittivity of free space, A is the area of the plates, and d is the separation between the plates. Substituting this into eq.(1), we can write the initial potential energy stored in the capacitor as
Later, the separation between the plates is doubled:
while the potential difference is kept constant. Therefore, we can calculate the new potential energy:
So, we see that the potential energy has been halved.
Answer:
Infrared
Explanation:
This is the electromagnetic spectrum just above the visible light spectrum with higher energy (and higher frequency). This electromagnetic radiation is responsible for feeling the heat when you place your hand close to the side of a fire. It is also harnessed in night vision where bodies that emit some form of heat are visible due to their emission of IR.
Answer:
hmmmmm
Explanation:
I am gonna say D.
if I am right plz give me a brainliest