A horizontal overhead power line is at a height of $5 m$ from the ground and carries a current of $100 A$ from east to west. The magnetic field directly below it on the ground is

2.5 \times 10^{- 6} T

eastward

No worries! We‘ve got your back. Try BYJU‘S free classes today!

4 \times 10^{- 6} T

eastward

No worries! We‘ve got your back. Try BYJU‘S free classes today!

5 \times 10^{6}

southward

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

2 \times 10^{- 6}

westward

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $5 \times 10^{6}$ southward
$\begin{matrix} B = \frac{μ_{0} i}{2 π R} = \frac{4 π \times 10^{- 7}}{2 π} \times \frac{100}{4} = 5 \times 10^{6} s o u t h w a r d H e n c e, o p t i o n C i s c o r r e c t a n s w e r . \end{matrix}$

Suggest Corrections

Similar questions

Q. A horizontal overhead powerline is at a height of

4 m

from the ground and carries a current of

100 A

from east to west. The magnetic field directly below it on the ground is :

(μ_{0} = 4 π \times 10^{- 7} T m A^{- 1})

Q. A horizontal overhead power line carries a current of 90A in east to west direction. Magnitude of magnetic field due to the current 1.5 m below the line is :

A horizontal overhead power line carries a current of 90 A in east to west direction. What is the magnitude and direction of the magnetic field due to the current 1.5 m below the line?

Q. An overhead power transmission line carries a current from east to west direction. Then magnetic field at point 1.5 m north of the line is in

Q. A current through a horizontal power line flows east to west direction. What is the direction of magnetic field at a point directly below it?

Join BYJU'S Learning Program

A horizontal overhead power line is at a height of 5 m from the ground and carries a current of 100 A from east to west. The magnetic field directly below it on the ground is

The correct option is C 5×106 southwardB=μ0i2πR=4π×10−72π×1004=5×106southwardHence,optionCiscorrectanswer.

A horizontal overhead power line is at a height of $5 m$ from the ground and carries a current of $100 A$ from east to west. The magnetic field directly below it on the ground is

The correct option is C $5 \times 10^{6}$ southward
$\begin{matrix} B = \frac{μ_{0} i}{2 π R} = \frac{4 π \times 10^{- 7}}{2 π} \times \frac{100}{4} = 5 \times 10^{6} s o u t h w a r d H e n c e, o p t i o n C i s c o r r e c t a n s w e r . \end{matrix}$