Blocks A and B are identical metal blocks. Initially block A is neutral, and blo
ID: 2002801 • Letter: B
Question
Blocks A and B are identical metal blocks. Initially block A is neutral, and block B has a net charge of 5.3 nC. Using insulating handles, the blocks are moved so they touch each other. After touching for a few seconds, the blocks are separated (again using insulating handles).
(a) What is the final charge of block A?
nC
(b) What happened while the blocks were in contact with each other?
Electrons moved from block A to block B.Positrons moved from block B to block A. Protons moved from block B to block A.No charged particles moved.Both protons and electrons moved.
Explanation / Answer
Here ,
A)
as the blocks are identical ,
charge will distribute uniformly on both blocks
hence , final charge on block A = (5.3 + 0) nC/2
final charge on block A = 2.65 nC
the final charge on block A is 2.65 nC
B) as the positive charge is coming on block A
electrons will flow from A to B
Electrons moved from block A to block B