Challenger App

No.1 PSC Learning App

1M+ Downloads
When cotton and rubber are rubbed together, it will result in which of the following?

ACotton will be positively charged and rubber negatively charged.

BRubber will be positively charged and cotton negatively charged.

CCotton and rubber will be positively charged.

DCotton and rubber will be negatively charged,

Answer:

A. Cotton will be positively charged and rubber negatively charged.

Read Explanation:

When cotton and rubber are rubbed together, the rubber becomes positively charged and the cotton becomes negatively charged due to the transfer of electrons, a phenomenon known as triboelectric charging. When cotton and rubber are rubbed together, there is a transfer of electrons due to the triboelectric effect. Cotton tends to lose electrons and become positively charged. Rubber tends to gain electrons and become negatively charged. This phenomenon occurs because different materials have different affinities for electrons. The triboelectric series is used to predict which material will become positive and which will become negative when rubbed together.


Related Questions:

The value of absolute refractive index of a medium is always?
If a coil of a conductor with 50 Ω resistance is subjected to time varying magnetic field such that the EMF induced is 5 V, then the induced current in the coil is?
ഇന്ത്യയുടെ രണ്ടാംഘട്ട ആണവ പരീക്ഷണങ്ങൾ നടത്തിയപ്പോൾ പ്രധാനമന്ത്രി ആരായിരുന്നു ?
How many pipes are there in single stack system?
The rate of transmission of energy across unit area of wave front is called