Question

A negatively charged object attracts another charge object kept close to it. What is the nature of the charge on the other object?
A) Positive
B) Negative
C) Both
D) None

Answer 1

Hint: One might have done this experiment at home. When one rubs his hair with a comb and puts the comb near a piece of paper, the paper seems to stick to the comb. There is a reason for the comb sticking to the piece of paper when rubbed on hair.

Complete step by step solution:
Here we know that charges are of two types positive and negative. These two types of charges are available everywhere in existence. We know that atoms are made up of many particles, sub particles, etc. Out of the many particles the atom consists of basically three particles namely proton, neutron and electron. Where a proton is positively charged, a neutron has neutral charge, an electron has a negative charge. An object which possesses a greater number of electrons will have a negative charge on it and an object which has a greater number of protons will have a positive charge on it. Here, positive-positive charge attracts each other and negative-negative charges repel each other. Two opposite charges attract each other. So, by this analogy if a negative object attracts another object then the charge on the other object will be positive. An object can be in neutral state but when an object which has a negative charge is put close to an object with a neutral charge. The electrons of the object which is having a negative charge will attract the positive charges on the object which is neutral in nature. Here, neutral means that the object has an equal number of positive and negative charges.

Hence, Option (A) is correct.

Note: Here make sure to explain the concept in detail and also explain the working of charges. Make sure to draw an analogy about objects attracting each other and the appropriate reason behind attraction or repulsion.