Part A If a spherical raindrop of radius 0.500 mm carries a charge of -1.50 pC u
ID: 2048893 • Letter: P
Question
Part A
If a spherical raindrop of radius 0.500 mm carries a charge of -1.50 pC uniformly distributed over its volume, what is the potential at its surface? (Take the potential to be zero at an infinite distance from the raindrop.)
V= ____ V
Answer to part A is: -27.0
Now I need parts B and C
Part B
Two identical raindrops, each with radius and charge specified in part (A), collide and merge into one larger raindrop. What is the radius of this larger drop, if its charge is uniformly distributed over its volume?
R=___ m
Part C
What is the potential at its surface, if its charge is uniformly distributed over its volume?
V= ___ V
Explanation / Answer
same problem with different numbers please have a look at it it helps
a)If a spherical raindrop of radius 0.400 carries acharge of -1.80 uniformly distributed over its volume, whatis the potential at its surface? (Take the potential to be zero atan infinite distance from the raindrop.)
r = 0.400 mm = 4.00*10-4 m
q = -1.80 pC = -1.80*10-12 C
k = 9.00*109 Nm2/C2
Ans: U = kq/r = -40.5 V
b)Two identical raindrops, each with radius and chargespecified in part (A), collide and merge into one larger raindrop.What is the radius of this larger drop, if its charge is uniformlydistributed over its volume?
Ans: the radius of the larger drop is R
2*(4r3/3) = 4R3/3
R = 21/3r = 5.04*10-4 m