Question

A neutrally charged plastic ruler is rubbed with cotton and acquires a positive charge what statements that are true for positively charge strip

a) it loses so electrons In the cloth during the charging process
b) it loses all of its electrons to the cotton during the charging process
c) it has the opposite charge to cotton
d) it would now be repelled by the plece of cotton which was used to charge it
e) it gained protons during rubbing process
f) it could exert either a repulsive or attractive influence upon naturally charged paper bits
g) it has an excess of protons compared to the number of electrons

Answer 1

A positively charged plastic ruler after being rubbed with cotton would have lost some electrons to the cotton, would have the opposite charge to the now negatively charged cotton, and would be repelled by the cotton. It did not gain protons during the process, nor does it have an excess of protons after the process.

Step-by-step explanation:

When a neutrally charged plastic ruler is rubbed with cotton and acquires a positive charge, several statements can be evaluated based on our understanding of electrostatics:

• It loses some electrons to the cotton during the charging process.
• It does not lose all of its electrons to the cotton during the charging process.
• It has the opposite charge to cotton, which has gained electrons and thus has become negatively charged.
• It would now be repelled by the piece of cotton which was used to charge it.
• It did not gain protons during the rubbing process.
• It could exert either a repulsive or attractive influence upon neutrally charged paper bits due to induction.
• It does not have an excess of protons; it has a deficiency of electrons compared to the number of protons.

The correct statements regarding the positively charged strip are:

1. It loses some electrons to the cloth during the charging process (a)
2. It has the opposite charge to cotton (c)
3. It would now be repelled by the piece of cotton which was used to charge it (d)