To solve this problem we will apply the expression of charge per unit of time in a capacitor with a given resistance. Mathematically said expression is given as

Here,
q = Charge
t = Time
R = Resistance
C = Capacitance
When the charge reach its half value it has passed 10ms, then the equation is,




We know that RC is equal to the time constant, then

Therefore the time constant for the process is about 14ms
ohm's law V=IR
V=24x11=240+24=264V
About mains and dangerous needs insulating
C it takes a lot of capital to get the windmills and the fields of windmills set up
Gamma-rays, the explanation and information is found in the image below.
The forces are net forces. I think this is correct.