# General Knowledge - Physics - Discussion

### Discussion :: Physics - Section 1 (Q.No.6)

6.

Nuclear sizes are expressed in a unit named

 [A]. Fermi [B]. angstrom [C]. newton [D]. tesla

Explanation:

Fermi - A unit of length equal to 10-15 meter (one femtometer), used in nuclear physics. It is similar to the diameter of a proton.

 Kriti said: (Jul 8, 2012) *angstrom is a unit of wavelength. *newton-force. *tesla-magnetic field

 Paschalrog said: (Sep 21, 2014) In details what is tesla~?

 Sunil Kumar Mahalik said: (Aug 14, 2015) Tesla is the unit of magnetic field intensity.

 Kamak said: (Oct 12, 2015) What is the conductivity?

 Dheenar said: (Oct 21, 2015) Tesla is the unit of magnetic flux density. Flux means without inter mediate (transformer, etc.,) can pass current. Tesla is greatest scientist in the world.

 Prasanna said: (Dec 18, 2015) What is meaning of the phrase fermi and where does it derived?

 Shashikant Ak said: (Dec 23, 2015) What is the resistance?

 Shift said: (May 1, 2016) @Shashikant. The obstructions given to the flow of current is called resistance. Its SI unit is ohm.

 Bharani said: (Nov 30, 2016) Femto is also 10^-15.

 Usman Abdullahi Karwai said: (Dec 20, 2016) Angstrom ~wave length. Newton~force. Tesla~magnetic flux. Fermi is the answer.

 Usman Abdullahi Karwai said: (Jan 7, 2017) Basic different between step up and step down transformer.

 Sonu Kumar said: (Sep 13, 2017) Where the Angstorm unit is used?

 Gaurav said: (Dec 7, 2017) Tesla unit magnetic flux density.