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CBSE Class 12-science Answered

how would we get idea of the magnetic field on unknown planet
Asked by Nitin Singh Chauhan | 11 Oct, 2012, 11:15: PM
answered-by-expert Expert Answer
There is no possible remote way.
However what we usually do is we see its influence on other nearby heavenly body like a passing comet or electron shower over it by a nearby star.
The later way gives us the most accurate idea of the planets magnetic field due to obvious reasons but for say the foemer way u might ask how do we know about the mearby body's composition and we know that by its spectral signature. I.e by studying the waves emitted or reflected by that body
Answered by | 12 Oct, 2012, 09:16: PM

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CBSE 12-science - Physics
state biot savart law
Asked by himanshurawat5823 | 08 Mar, 2024, 01:24: PM
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CBSE 12-science - Physics
Answer this:  Assertion (A): When radius of a circular loop carrying a steady current is doubled, its magnetic moment becomes four times.  Reason (R): The magnetic moment of a circular loop carrying a steady current is proportional to the area of the loop.  Select the correct answer from the codes (a), (b), (c) and (d) as given belote.  (a) Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of the Assertion (A).  (b) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).  (c) Assertion (A) is true, but Reason (R) is false.  (d) Assertion (A) is false and Reason (R) is also false.
Asked by anubhutiupadhaya | 06 Mar, 2023, 04:23: PM
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CBSE 12-science - Physics
PLEASE SOLVE IT
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Asked by rd0543293 | 19 Jun, 2022, 10:51: AM
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CBSE 12-science - Physics
How much energy is stored in a 3 cm diameter, 12 cm long solenoid that has 200 turns of wire and carries a current of 0.8A?
Asked by arjunsah797 | 26 Mar, 2022, 09:10: AM
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CBSE 12-science - Physics
Please refer to the uploaded image for the doubt
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Asked by arjunsah797 | 16 Mar, 2022, 02:07: PM
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CBSE 12-science - Physics
ampere law
Asked by shantanumail24 | 09 Mar, 2022, 07:04: PM
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CBSE 12-science - Physics
As we know, work done by Magnetic force is always zero in moving a charged particle./So it cannot change speed of charged particle. MY doubt is that, can magnetic force change direction of motion of charged particle?
Asked by yashrajgharte24.12dgatl | 25 Oct, 2021, 06:53: PM
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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
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CBSE 12-science - Physics
Sir , if a magnetic field is increasing in a cylindrical volume at a constant rate. then what will be direction of instantaneous acceleration experienced by an electron placed inside cylinder but not on center?
Asked by yashrajgharte24.12dgatl | 24 Sep, 2021, 04:21: PM
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CBSE 12-science - Physics
why the flux of magnetic field over a closed surface always zero?
Asked by yashrajgharte24.12dgatl | 24 Aug, 2021, 07:23: AM
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