Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

How can a person identify whether the magnetic field at a particular point is due to earth or due to some current carrying conductor?
Asked by Topperlearning User | 28 Apr, 2015, 03:07: PM
answered-by-expert Expert Answer

A freely suspended magnetic needle always rests in north-south direction due to earth’s magnetic field, and if this magnetic needle turns to some other direction and returns back to north-south  when the current is switched off , then the magnetic field is due to  a current carrying conductor.

Answered by | 28 Apr, 2015, 05:07: PM

Concept Videos

Multiple Choice Questions Practice Test Subjective Questions Webinar Subjective Questions Pre Board Assessment
Answered Unanswered My Questions My Answers
CBSE 12-science - Physics
ampere law
Asked by shantanumail24 | 09 Mar, 2022, 07:04: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
the rate of change of potential difference across capacitor is 5×10^2 v/s . if capacitance is 2uF ,then displacement current between it's plate is ?
Asked by pushpakumari291279 | 01 Oct, 2021, 11:08: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
How can a person identify whether the magnetic field at a particular point is due to earth or due to some current carrying conductor?
Asked by Topperlearning User | 28 Apr, 2015, 03:07: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
In what way, a wire carrying a current is differ from a wire, which carries no current?
Asked by Topperlearning User | 28 Apr, 2015, 03:16: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
What is the limitation of Ampere’s circuital law?
Asked by Topperlearning User | 19 May, 2015, 09:45: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
State ampere’s circuital law and express it mathmatically.
Asked by Topperlearning User | 28 Apr, 2015, 03:37: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Six parallel aluminum wires of small, but finite, radius lie in the same plane. The wires are separated by equal distances d, and they carry equal currents I in the same direction. Find the magnetic field at the center of the first wire. Assume that the current in each wire is uniformly distributed over its cross section.
Asked by Topperlearning User | 08 May, 2015, 08:16: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
A horizontal overhead power line carries a current of 120 A in east to west direction. What is the magnitude and direction of the magnetic field due to the current 4.5 m south of the line?
Asked by Topperlearning User | 08 May, 2015, 08:28: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Plot and explain the graph for variation in magnetic field due to current through  a  long circular cylinder as we go from a point on the axix of cylinder to apoint lying outside it.
Asked by Topperlearning User | 08 May, 2015, 08:33: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
If the current in each wire is 2 amperes and the distance of each wire from point P1 and P2 is 1 cm, what is the net magnetic field at the point P1 and P2?
Asked by Topperlearning User | 08 May, 2015, 09:10: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt