Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • Medical
  • Five parallel infinite wires are placed at the vertices of a regular pentagon. Four wires carry current Io each while the fifth wise carries current <img alt="3 \dot{

Five parallel infinite wires are placed at the vertices of a regular pentagon. Four wires carry current Io each while the fifth wise carries current 3 \dot{I}_0 as shown. The resultant magnetic field at the centre O is

 

Option: 1

zero


Option: 2

\frac{\mu_0 2I_0}{2 \pi a}


Option: 3

\frac{\mu_0 I_0}{\pi a}


Option: 4

\infty


Answers (1)

best_answer

By superposition, magnetic field at the centre is only due to wire having current 3I_0, but effective current is only 2I_0.

\therefore|\vec{B}|=\frac{\mu_0 2 I_0}{2 \pi a}=\frac{\mu_0 I_0}{\pi a}

Posted by

avinash.dongre

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

MP HC allows NTA to declare NEET UG 2025 results except for 11 centres in Indore
anam-khan

NEET UG 2025: HC grants stay on result after Chennai students point to power cut in exam centre
anam-khan

CENTAC Puducherry to host interactive session for Non-NEET UG courses at 6 pm today

Latest Question