A teacher wishes to show the production of electrostatic charges.
She holds a rod and rubs it with a cotton cloth. A copper rod, a glass rod, a plastic rod and a steel
rod are available.
Which two rods would both be suitable to use?

A copper rod and a glass rod

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A glass rod and a plastic rod

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

A plastic rod and a copper rod

No worries! We‘ve got your back. Try BYJU‘S free classes today!

A plastic rod and a steel rod

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A A glass rod and a plastic rod
Glass and plastic rods can provide enough friction for the exchange to happen and can sustain the charge. metal rods will not have enough friction and can quickly conducts the charge to become neutral, So for demonstration glass rod or plastic rods are used.

Suggest Corrections

Similar questions

Question 2

When a glass rod is rubbed with a piece of silk cloth the rod :
a) both glass rod and the cloth both acquire positive charge.
b) glass rod becomes positively charged while the cloth has a negative charge.
c) both glass rod and the cloth both acquire negative charge.
d)glass rod becomes negatively charged while the cloth has a positive charge.

What kind of electric charge is acquired:

(a) by a glass rod rubbed with silk cloth?

(b) by a plastic comb rubbed with dry hair?

Q. Following articles are placed in contact with the metallic disc of a positively charged electroscope
i) an ebonite rod rubbed with fur
ii) a glass rod rubbed with slim

iii) a plastic rod not rubbed with anything
if) a copper rod

Q. Statement 1: Plastic rod becomes negatively charged when rubbed with a cloth.
Statement 1: Glass rod becomes positively charged when rubbed with a cloth.
Explain both the statements.

Q. When a charged glass rod rubbed with silk cloth is brought near a negatively charged plastic straw, there is an attraction between the two. What can be said about the glass rod?

Join BYJU'S Learning Program

A teacher wishes to show the production of electrostatic charges.She holds a rod and rubs it with a cotton cloth. A copper rod, a glass rod, a plastic rod and a steelrod are available.Which two rods would both be suitable to use?

A teacher wishes to show the production of electrostatic charges.
She holds a rod and rubs it with a cotton cloth. A copper rod, a glass rod, a plastic rod and a steel
rod are available.
Which two rods would both be suitable to use?