Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • At what distance from a long straight wire carrying a current of 12 A will the magnetic field be equal to <img alt="3 \times 10^{-5} \mathrm{~Wb} / \mathrm{m}^2" src="https://entrancecorner.oncodec

At what distance from a long straight wire carrying a current of 12 A will the magnetic field be equal to 3 \times 10^{-5} \mathrm{~Wb} / \mathrm{m}^2 ?

Option: 1

8 \times 10^{-2} \mathrm{~m}


Option: 2

12 \times 10^{-2} \mathrm{~m}


Option: 3

18 \times 10^{-2} \mathrm{~m}


Option: 4

24 \times 10^{-2} \mathrm{~m}


Answers (1)

best_answer

Current ( I ) = 12 A and magnetic field \mathrm{(B)} = 3 \times$ $10^{-5} \mathrm{~Wb} / \mathrm{m}^2. Consider magnetic field \overrightarrow{\mathrm{B}}at distance r.


Magnetic field , \mathrm{B=\frac{\mu_0 I}{2 \pi r}}


\mathrm{ \Rightarrow r=\frac{\mu_0 I}{2 \pi B}=\frac{\left(4 \pi \times 10^{-7}\right) \times 12}{2 \times \pi\left(3 \times 10^{-5}\right)}=8 \times 10^{-2} \mathrm{~m} }

Posted by

Gautam harsolia

View full answer

NEET 2024 Most scoring concepts

    Just Study 32% of the NEET syllabus and Score up to 100% marks

Similar Questions

Trending Articles/News

anam-khan

'PM Modi personally supervising the situation': Centre tells SC in NEET case
anam-khan

NEET Paper Leak Row: NTA informs SC of security overhaul, institutional reforms
anam-khan

Re-NEET 2026 City Intimation Slip LIVE: NTA MBBS admit card soon; direct link, login details, exam date

Latest Question