1i don thnk there wld b any repulsive force there...
when a +ive pt charge is placed near a un charged conducting ball which was hung by a conducting thread
a non conducting thread
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17 Answers
62To be true, i am not absolutely sure about this one sankara...
I just took this on the face value.. and when i tried to probably question myself... i did not get the answer which was convincing enuf..
1i said d charges get distributed over d insulator( non conductin thread)
1@sankara...
fr d case 2) d charges ll get didtributed throughout d ball as well d non cond thread..
3now consider the situation .The rods r conductors.
wont the electrostatic forces of repulsion is greater than
the electrostatic force of attraction.
1case1: -ve charge will accumulate on the surface of te conducting ball..
but since the thread is conducting, the charge will flow through the thread.
case2: -ve charge will accumulate on the surface of te conducting ball..
but since the thread is non-conducting so the -ve charge will
remain as it is on the ball .. on its surface ...
3tx sir .please reply for the question wat is the part of rubbing action for a rod to get charged.
62sankara.. charges are not "produced" by induction..
What happens is that the electrons in a conductor (or partial conductor) are pulled or repelled by the electrons...
this changes the distribution of the charges on the sphere.. so that instead of being uniformly charged it becomes charged in different parts! But you should not that overall it remains neutral.. (unless you connect it to another body by a conductor!)
3if so sky then why an charged insulated object discharges when we place that object on heating.
another question how can charges can be produced by induction
1(see my mind not working now but still..) by rubbing ---- heat produced --- energy of electrons increases --- there's forceful transfer of electrons from silk to rod (or opposite ... am sry i cudn remeber now)
so it gets charged....
3sky if a glassrod rubbed with silk we get a charged glass rod.
wat is the part of rubbing action for the rod to get charged.
1i dun think....
bcoz... wat can be the method of its getting charged...
it wont happen through conduction.
by induction......... it will depend.. whther u are keeping the positive charge closer to the thread or the ball...