Blocks A and B are identical metal blocks. Initially block A is neutral, and block B has a net charge of 8.7 nC. Using insulatin
g 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? (b) What happened while the blocks were in contact with each other?
b) There is a flow of current when the two blocks were brought in contact since there is imbalance of the charge distribution and both are identical metal masses.
Explanation:
Given:
initial charge on metal block A,
initial charge on metal block B,
After the two are brought in contact with each other final charge on each of the block will be equal because the two bodies are identical.
So,
a)
Final charge on block A and block B,
b)
When the two blocks are brought into physical contact of together then the charges from the charged block move to the neutral block until there are equal charges on both the identical blocks. This flow of charge creates a flow of current for a short time till the charges get balanced on both the blocks to attain equilibrium. Charges flow due to the potential difference.