What would the final charge on the rod be?

AI Thread Summary
When a charged glass rod with a charge of 5.4 x 10^8 C touches an insulator, the total charge is shared equally between the two objects. Since there are two objects involved, the final charge on the rod is calculated by dividing the initial charge by two, resulting in 2.7 x 10^8 C. This outcome is based on the principle of charge conservation, which states that charge cannot be created or destroyed, only transferred. Understanding this principle clarifies why the final charge is halved. The discussion emphasizes the importance of conservation laws in electrical charge interactions.
pandamonium786
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I had a question.

If a glass rod, with a charge of 5.4x108 C touched another insulator so that all of the excess electrons are shared equally. What would the final charge on the rod be?

I don't understand how to reach the answer of 2.7 x108 C.

Thanks in advance. :)
 
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How many objects are sharing the total charge?
 
Bystander said:
How many objects are sharing the total charge?

2 objects. The glass rod and the insulator.
 
Have you run into any conservation law regarding charge?
 
Bystander said:
Have you run into any conservation law regarding charge?

The way I got the answer just now is by making each rod have half the excess electrons. So dividing 5.4 by 2 to = 2.7 x 10^8 C final charge.
I got the answer but i don't know why i am right.
 
pandamonium786 said:
why i am right
Charge is a conserved quantity, one of seven such.
 
Thread 'Collision of a bullet on a rod-string system: query'

Thread 'Collision of a bullet on a rod-string system: query'

In this question, I have a question. I am NOT trying to solve it, but it is just a conceptual question. Consider the point on the rod, which connects the string and the rod. My question: just before and after the collision, is ANGULAR momentum CONSERVED about this point? Lets call the point which connects the string and rod as P. Why am I asking this? : it is clear from the scenario that the point of concern, which connects the string and the rod, moves in a circular path due to the string...
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