If an object made of substance A is rubbed with an object made of substance B, then A becomes positively charged and B becomes negatively charged. If, however, an object made of substance A is rubbed against an object made of substance C, then A become negatively charged. What will happen if an object made of substance B is rubbed against an object made of substance C?
If an object made of substance A is rubbed with an object made of substance B, then A becomes positively charged and B becomes negatively charged. If, however, an object made of substance A is rubbed against an object made of substance C, then A become negatively charged. What will happen if an object made of substance B is rubbed against an object made of substance C?
The correct option is C B becomes negatively charged and C becomes positively charged.
Rock is my favourite WWE player. In my world he is a winner. If there is a fight between him and Triple H, Rock will beat the hell out of him and win always. (Obviously assuming Triple H doesn’t cheat, no chairs allowed) but no one can be a true winner. There will always exist somebody with 9 lives. Somebody who rises from the dead “The under taker”
In front of the undertaker the rock is a looser. So my list of superiority is
Undertaker
Big show
Kane
Rock
Rey Mysterio
Triple H
Shawn Michales
A fight between any 2 from the list will result in the one higher on the list to be the winner.
There is a similar list for substances.
This list shows that if 2 substances are rubbed then the one higher on the list will acquire a positive charge. It’s called Tribo-electric series. Tribo-electric charging is a phenomena in which certain substances get charged when they come in frictional contact of each other.
+ve Dry hair
Glass
Silk
Cotton
0
Wood
Amber
Rubber balloons
Sulphur
–ve
If you are really keen on knowing how exactly this happens, please search about it.
It’s something to do with adhesion and equalizing of electrochemical potential.
So from the list if I rub glass and cotton, glass acquires +ve and cotton –ve, but if I rub glass on my dry hair, glass will acquire –ve.
Now coming back to the question
If A and B are rubbed A become +ve
So A will be above B in the series
+ve A
B
If A and C are rubbed A becomes –ve, so, A will be below C in the series.
+ve C
A
B
Now If B and C are rubbed as you can see clearly from the list that C is above B. so C will aquire +ve and B will be –ve
B becomes negatively charged and C becomes positively charged.
Rock is my favourite WWE player. In my world he is a winner. If there is a fight between him and Triple H, Rock will beat the hell out of him and win always. (Obviously assuming Triple H doesn’t cheat, no chairs allowed) but no one can be a true winner. There will always exist somebody with 9 lives. Somebody who rises from the dead “The under taker”
In front of the undertaker the rock is a looser. So my list of superiority is
Undertaker
Big show
Kane
Rock
Rey Mysterio
Triple H
Shawn Michales
A fight between any 2 from the list will result in the one higher on the list to be the winner.
There is a similar list for substances.
This list shows that if 2 substances are rubbed then the one higher on the list will acquire a positive charge. It’s called Tribo-electric series. Tribo-electric charging is a phenomena in which certain substances get charged when they come in frictional contact of each other.
+ve Dry hair
Glass
Silk
Cotton
0
Wood
Amber
Rubber balloons
Sulphur
–ve
If you are really keen on knowing how exactly this happens, please search about it.
It’s something to do with adhesion and equalizing of electrochemical potential.
So from the list if I rub glass and cotton, glass acquires +ve and cotton –ve, but if I rub glass on my dry hair, glass will acquire –ve.
Now coming back to the question
If A and B are rubbed A become +ve
So A will be above B in the series
+ve A
B
If A and C are rubbed A becomes –ve, so, A will be below C in the series.
+ve C
A
B
Now If B and C are rubbed as you can see clearly from the list that C is above B. so C will aquire +ve and B will be –ve
