Ex 12.2, 3 - Chapter 12 Class 8 Exponents and Powers - Part 2

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  1. Chapter 12 Class 8 Exponents and Powers
  2. Serial order wise

Transcript

Ex 12.2, 3 Express the number appearing in the following statements in standard form. (ii) Charge of an electron is 0.000,000,000,000,000,000,16 coulomb. 0.000,000,000,000,000,000,16 coulomb = 16/100,000,000,000,000,000,000 = 16/〖10〗^20 = 16×〖10〗^(−20) = (1.6×10) × 〖10〗^(−20) = 1.6 × (10×〖10〗^(−20) ) = 1.6 × 〖10〗^(1 + (−20)) = 𝟏.𝟔 × 〖𝟏𝟎〗^(−𝟏𝟗) coulomb (Using 𝑎^𝑚×𝑎^𝑛=𝑎^(𝑚 + 𝑛))

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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.