How to find after rubbing which all particles will have positive charges and which all will have negative charges while such questions are given in exams?
Nb: Without electroscope.
How to find after rubbing which all particles will have positive charges and which all will have negative charges while such questions are given in exams?
Nb: Without electroscope.
Actually, it cannot be said because every object is having different charge. For example, if we rub a silk cloth with a glass rod , the glass rod gets a negative charge and the cloth gets positive charge. In the same way the wool gets negative charge and glass gets positive charge
It is a rule that the charge accquired by a glass rod after it is rubbed with silk is negative. So to check whether an object has a positive or negative charge we can bring it near to the glass rod charged with positive charge.
If the glass rod and the object shows repulsion, the object will be positivly charged. If the object shows attraction, the object will be negatively charged.
Actually, it cannot be said because every object is having different charge. For example, if we rub a silk cloth with a glass rod , the glass rod gets a negative charge and the cloth gets positive charge. In the same way the wool gets negative charge and glass gets positive charge
It is a rule that the charge accquired by a glass rod after it is rubbed with silk is negative. So to check whether an object has a positive or negative charge we can bring it near to the glass rod charged with positive charge.
If the glass rod and the object shows repulsion, the object will be positivly charged. If the object shows attraction, the object will be negatively charged.
