A positively charged rod is brought near one of them, attracting negative charge to that side, leaving the other sphere positively charged. This is an example of induced polarization of neutral objects. Polarization is the separation of charges in an object that remains neutral.
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What happens when a positively charged rod?
When a positively charged glass rod touches the metal knob of a gold leaf electroscope, the electrons travel from the leaves to the metal rod. As a result, the leaves become positively charged. Since the charge on both the leaves is the same, they are repelled away from each other, and hence, spread apart.
Why glass rod is positively charged?
Rubbing a glass rod with silk transfers electrons from the glass to the silk and the deficiency of electrons on the glass makes the net charge on the glass rod positive.
Is the rod negatively or positively charged?
If you rub a glass rod with a cloth, the charge produced on the glass rod is called positive, whereas when a plastic rod is rubbed with a cloth, the charge produced on the plastic rod is negative.
How do you make a rod positively charged?
When you rub the plastic rod (polyethylene terephthalate, glycol modified, or PETG) with the wool cloth, the rod charges negative. When you rub the glass rod with the silk, the rod charges positive.
When a positively charged rod is brought near?
Positively charged rod induces negative charge on the side of the sphere closer to the rod and an equal positive charge on the side away from the rod. When the rod is withdrawn, the negative charges move to neutralise the equal positive charge. The charge left is zero.
What happens when a positively charged object touches metal?
A metal sphere is electrically neutral. It is touched by a positively charged metal rod. As a result, the metal sphere becomes charged positively.
What is positively charged rod is brought near an uncharged metal ball?
When a positively charged body is brought near an uncharged metal rod, the part of the rod near the charged body acquires a negative charge because of the process of induction. The positively charged body attracts the negative charges, i.e., electrons towards it.
How does a positively charged glass rod attract a neutral piece of paper?
Why does the rod attract paper pieces which are uncharged ? This is because the positively charged rod attracts the electrons of a paper piece towards itself. Some of the electrons accumulate at that edge of the paper piece which is closer to the rod.
Why is glass negatively charged?
We can now interpret what is happening with the glass/plastic rod experiments. Glass happens to lose electrons easily, and silk grabs them away from the glass atoms, so after rubbing the glass becomes positively charged and the silk becomes negatively charged. Plastic has the opposite tendency.
How is a glass rod positively charged when rubbed with silk?
When the glass rod is rubbed with silk clothes, glass quickly loses electrons, and silk takes electrons out of the glass rod. So after rubbing, the glass rod becomes positively charged and the silk gets negative charge.
Why does a glass rod becomes positively charged when rubbed with a silk cloth?
When a glass rod is rubbed with silk, it acquires a positive charge, means it is deficit of electrons i.e, electrons move from glass to silk. So glass rod becomes positively charged and silk rod is negatively charged.
How does a plastic rod become positively charged?
For example, when a plastic rod is rubbed with a duster, electrons are transferred from one material to the other. The material that gains electrons becomes negatively charged. The material that loses electrons becomes positively charged. The duster picks up electrons from the rod.
How does an object become positively charged?
An electrical charge is created when electrons are transferred to or removed from an object. Because electrons have a negative charge, when they are added to an object, it becomes negatively charged. When electrons are removed from an object, it becomes positively charged.
How do you charge a glass rod negatively?
Solution: When a glass rod is rubbed with silk, glass rod loses electrons and silk gains electrons. Glass rod becomes positively charged and silk becomes negatively charged.
Why does water bend towards a positively charged rod?
When a negatively-charged rod is brought close to a water stream, individual water molecules align themselves so the positive (hydrogen) end points towards the rod. Negative and positive charges attract one another and the water stream is bent towards the rod.
Why does a charged rod bend water?
The charge on the comb attracts the molecules of water in the stream. Because the molecules in the stream can be moved easily, the stream bends toward the comb. Because water molecules are polarized molecules, the effect is stronger than with dust.
Which will a positively charged object attract?
Positively charged objects and neutral objects attract each other; and negatively charged objects and neutral objects attract each other. This third interaction between charged and neutral objects is often demonstrated by physics teachers or experienced by students in physics lab activities.
What happens when two positively charged material is placed together?
Same charges repel while opposites charges attract each other when placed together. Was this answer helpful?
What does the positive (+) charge indicate?
In an atom, a positive charge occurs when an atom has more protons than electrons. The proton is what determines its positive charge. It is denoted with a plus (+) sign. It attracts negative charges and repels other positive charges. In NaCl, the sodium cations, Na+, are neutralized by chlorine anions, Cl -.
What is happening when a positively charged rod becomes grounded?
What is happening when a positively-charged rod becomes grounded? When a positively charged rod becomes grounded it becomes neutral. The electrons come from the ground to your hand, then from your hand to the rod making the rod become neutral.
Are positively charged glass rod attract an object the object must be?
A positively charged glass rod attracts a suspended object.
What will happen if a positively charged object is brought near a neutral object?
If a positively charged body is brought near to a neutral or uncharged body, it induces a negative charge on the near side and a positive charge on the far side of the neutral object. This creates a force of attraction between the two bodies.
When a negatively charged rod is brought near?
When a negatively charged rod is brought near the cap of a gold leaf electroscope whose case is earthed, then 1) Leaves will have induced positive charge 2) Positive charge is induced on one leaf and negative on the other.
When a positively charged glass rod is brought near an uncharged pith ball then what happens to pith ball?
Solution : The pith ball is attracted towards the rod, touches it and then repelled.