Physics, asked by kuhuaarohie0630, 6 hours ago

CLASS :- 10th
[NCERT BOOK] {QUESTIONS} (PAGE:- 200)
1. What does an electric circuit mean?

Answer:-

2. Define the unit of current.

Answer:-

3. Calculate the number of electrons constituting one coulomb of charge.

Answer:- ​

Answers

Answered by RISH4BH
108

Need to FinD :-

  • What is Electric Circuit ?
  • To define the unit of current .
  • To calculate the number of electrons constituting one coulomb of charge.

\bigstar\underline{\underline{\red{\sf Electric \ Circuit  :- }}}

  • It is the closed loop in which the current flows .
  • It is a network of electrical components like bulb , switch , etc .

\rule{200}2\\

\bigstar\underline{\underline{\red{\sf Unit \ of \ Current :- }}}

  • The rate of flow of charge is called Electrical Current.
  • Its unit is Ampere .

\rule{200}2\\

\bigstar\underline{\underline{\red{\sf No. \ of \  e^- \ in \ 1C \ charge :- }}}

  • We also know that the charge on a body is the integral multiple of the number of electrons present in it . So that ,

\sf\longrightarrow Charge ( q) = ne

  • The value of e is 1.6 × 10-¹ C . On substituting , we get ,

\sf\longrightarrow 1C = n * 1.6 * 10^{-19} C \\\\\\\sf\longrightarrow n = \dfrac{1}{1.6 * 10^{-19} C }  \\\\\\\sf\longrightarrow \underline{\underline{\red{\sf n_{(Electrons)}= 6.25 \times 10^{18} }}}

\rule{200}2

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