Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Engineering
  • A closely wounded circular coil of radius produces a magnetic field of <img alt="37.68 \t

A closely wounded circular coil of radius 5 \mathrm{~cm} produces a magnetic field of 37.68 \times 10^{-4} \mathrm{~T} at its center. The current through the coil is _____________A. [Given, number of turns in the coil is 100 and \pi=3.14 ]

Option: 1

3


Option: 2

-


Option: 3

-


Option: 4

-


Answers (1)

best_answer

\mathrm{R =5 \mathrm{~cm}=5 \times 10^{-2} \mathrm{~m} }

\mathrm{B =37.68 \times 10^{-4} \mathrm{~T} }

\mathrm{n =100 }

\mathrm{B= \frac{\mu_0 n i}{2R} }

\mathrm{37.68 \times 10^{-4} =\frac{4 \pi \times 10^{-7} \times 100 \times i}{2 \times 5 \times 10^{-2}} }

\mathrm{\frac{376.8 \times 10^{-6}}{4 \pi \times 10^{-5}}=i }

\mathrm{i=3 \mathrm{~A}}

Posted by

Rishabh

View full answer

JEE Main high-scoring chapters and topics

Study 40% syllabus and score up to 100% marks in JEE

Similar Questions

Trending Articles/News

anam-khan

JEE Main 2025: BTech ECE cut-offs for female candidates go up at top NITs
anam-khan

JEE Main 2025 Session 2 City Slip (OUT) Live: Admit card likely on March 29 at jeemain.nta.nic.in; cut-offs
anam-khan

AESL expands Aakash Digital 2.0 to offer AI-powered coaching for NEET, JEE, Olympiads

Latest Question