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Define th SI unit of electric current. (...

Define th SI unit of electric current. (or) What is one second in SI system of units? (or) Define one ampere (S.I standard for current)

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ampere is the SI unit of electric current. One ampere is the constant current, which when maintained in each of the two straight parallel conductors of infinite and negligible cross section held one metre apart in vacuum shall produce a force per unit length of `2xx10^(-7)N//m` between them.
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SURA PUBLICATION-NATURE OF PHYSICAL WORLD AND MEASUREMENT-ADDITIONAL QUESTIONS
  1. Define the SI unit of mass (or) What is one kilogram in SI system of u...

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  2. Define the SI unit of time. (or) What is one second in SI system of un...

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  3. Define th SI unit of electric current. (or) What is one second in SI s...

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  4. What is the SI unit of temperature and define it? What is one kelvin i...

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  5. What is the SI unit of amount of substance? (or) What is one mole in...

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  6. What meant by one candela? And Which base quantity is measured by this...

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  7. What is meant by the triple point of water?

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  8. What is meant by Parallax?

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  9. What is 1 Light year?

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  10. Define a Astronomical Unit.

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  11. What is parsec? (or) Define one parsec (parallactic second)

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  12. Why is the cylinder used in defining kilogram made up of platimum-irid...

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  13. Write the largest and the smallest practical unit of mass and time res...

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  14. Define mass

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  15. Write the masses of tiny as well as huge matter?

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  16. Write the methods to determine the masses of objects?

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  17. What is clock? Write the principle and its types.

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  18. Which units are used to measure laerge distance i.e. distance of plane...

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  19. Is it possible to have length and velocity both as fundamental quantit...

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  20. Which of these unit is lasrgest: AU, light year and parsec. Express th...

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