Three metal blocks in contact are sitting on a plastic
tabletop. You place two balls with strong positive
charges, one at each end of the line of blocks, close to
but not touching them.
You then poke the blocks apart with an uncharged
plastic rod while the two positively charged balls are still nearby. Finally you remove the two balls.
(i) What kind of charge is now on each block? (positive, negative, or none?)
(ii) Explain how the blocks acquired these charges by describing the motion of free electrons.

Question

Three	metal	blocks	in	contact	are	sitting	on	a	plastic
	 tabletop.	You	place	two	balls	with	strong	positive	
	 charges,	one	at	each	end	of	the	line	of	blocks,	close	to	
	 but	not	touching	them.
	 You	then	poke	the	blocks	apart	with	an	uncharged	
	 plastic	rod	while	the	two	positively	charged	balls	are	still	nearby.	Finally	you	remove	the	two	balls.	
	 (i)	 What	kind	of	charge	is	now	on	each	block?	(positive,	negative,	or	none?)	
	 (ii)	 Explain	how	the	blocks	acquired	these	charges	by	describing	the	motion	of	free	electrons.

anonymous · Answer

woops sorry for the weird spacing, I just copy and pasted lol