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The unit of energy in the CGS system is: (2020)

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Question: The unit of energy in the CGS system is: (2020)

Options:

  1. Joule
  2. Erg
  3. Calorie
  4. Watt

Correct Answer: Erg

Exam Year: 2020

Solution: 

In the CGS system, the unit of energy is Erg, where 1 Joule = 10^7 Ergs.

The unit of energy in the CGS system is: (2020)

Practice Questions

Q1
The unit of energy in the CGS system is: (2020)
  1. Joule
  2. Erg
  3. Calorie
  4. Watt

Questions & Step-by-Step Solutions

The unit of energy in the CGS system is: (2020)
  • Step 1: Understand that CGS stands for Centimeter-Gram-Second, which is a system of units.
  • Step 2: Identify that energy has different units in different systems.
  • Step 3: Learn that in the CGS system, the unit of energy is called 'Erg'.
  • Step 4: Know the conversion between Joules and Ergs: 1 Joule is equal to 10 million Ergs (10^7 Ergs).
  • Unit of Energy – The CGS (centimeter-gram-second) system uses the Erg as its unit of energy, contrasting with the SI system which uses the Joule.
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