# 13 - Moving charge magnetism and force in magnetic field Questions Answers

Is magnetic field conservative?

**Asked By: JAIDIP PATRA**11 Month ago

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**Asked By: BHUPESH THAKUR**5 year ago

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**Asked By: NEERAJ SHARMA**5 year ago

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CALCULATE THE MAGNETIC FIELD AT THE CENTRE OF SQUARE WIRE OF SIDE (2)^{1/2}cm AND CARRYING A CURRENT OF 10A.?

**Asked By: GAUTAM SAGAR**5 year ago

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**Answer Strategies and trick by Manish sir**(it will help you to solve it by yourself)

method given by BONEY is correct but formula is not correct

it should be **B = 4×{ (μ _{0}I) / 4πR } × [sinθ_{1}+ Sinθ_{2}]**

can you explain the magnetic meridian, geometric meridian and angle of deep? with diagram if possible

**Asked By: BONEY HAVELIWALA**5 year ago

**Solved By: SARIKA**

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two short magnets of equal dipole momet M are fastened perpedicularat their centre.the magnitude of magnetic feild at adistance d from the centre on the bisector of right angles is?

**Asked By: AKANKSHA**5 year ago

**Solved By: SARIKA**

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**Answer Strategies and trick by Manish sir**(it will help you to solve it by yourself)

the resultant dipole moment is √2M thus the resultant magnetic field is μ2√2M/4πd^{3} (ans)

this answer is given by sarika and is correct answer

velocity of e^{-} in hydrogen atom is 2X10^{6} m/s . the radius of orbit is 5X10^{-11} m . the mag induction at centre of orbit in T will be??

**Asked By: SARIKA**1 Month ago

**Asked By: SARIKA SHARMA**6 year ago

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**Answer Strategies and trick by Manish sir**(it will help you to solve it by yourself)

B = μ_{0}/2 * i/r

and i = e/T

and T = 2πr/v

solve

potential diff b/w dees of cyclotron is V , if charge q comes out of it after completing n revolution then gain in KE of charge is 2nqV HOW?

**Asked By: SARIKA**1 Month ago

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**Asked By: SARIKA SHARMA**6 year ago

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**Answer Strategies and trick by Manish sir**(it will help you to solve it by yourself)

when charge will move from first dee to second dee it will gain qV and on returning to first dee it will gain qV again so in one revolution it will gain 2qV so in n revolutions it will gain 2qVn

potential diff b/w dees of cyclotron is V , if charge q comes out of it after completing n revolution then gain in KE of charge is 2nqV HOW?

**Asked By: SARIKA**6 year ago

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