Charging Phenomenon: What Happens When Styrofoam Slab is Rubbed with Fur?

What happens when Styrofoam slab is rubbed with fur?

Mark all the correct statements:

1. Protons move from the fur to the slab.
2. Protons move from the slab to the fur.
3. Electrons move from the fur to the slab.
4. Electrons move from the slab to the fur.
5. The fur becomes negative after rubbing the slab.
6. The fur becomes positive after rubbing the slab.
7. The fur remains neutral after rubbing the slab.

Correct Answers:

3. Electrons move from the fur to the slab.

6. The fur becomes positive after rubbing the slab.

Charging phenomenon is basically transfer of electrons from one system to other. When a system loses the electrons, it becomes positively charged; and when a system gains electrons, it will become negatively charged. In this case, if the slab is rubbed against fur, one of them will lose electrons while the other will gain electrons. Hence, one will get negatively charged and the other will get positively charged.

According to the given information that the slab gets negatively charged, the correct options are:

3. Electrons move from the fur to the slab.

6. The fur becomes positive after rubbing the slab.