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High School/JEE/NEET/IPhO Physics | 17-19 Yrs

Electric Charges and Fields
Module - 1 Electrostatics
Duration: 9.07 Min
 
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Duration: 5.36 Min
 
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Duration: 3.27 Min
 
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Duration: 4.11 Min
 
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Duration: 4.01 Min
 
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Duration: 4.07 Min
 
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Module - 8 Coulomb's Law
Duration: 4.38 Min
 
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Duration: 10.25 Min
 
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Duration: 4.22 Min
 
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Module - 14 Solved Example-1
Duration: 3.41 Min
 
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Module - 15 Solved Example-2
Duration: 2.12 Min
 
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Module - 16 Solved Example-3
Duration: 5.01 Min
 
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Module - 17 Solved Example-4
Duration: 3.48 Min
 
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Module - 18 Solved Example-5
Duration: 3.30 Min
 
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Module - 19 Electric Field
Duration: 4.30 Min
 
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Duration: 7.26 Min
 
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Module - 22 Solved Example-6
Duration: 2.01 Min
 
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Module - 23 Solved Example-7
Duration: 2.32 Min
 
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Module - 24 Solved Example-8
Duration: 3.17 Min
 
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Module - 25 Solved Example-9
Duration: 1.54 Min
 
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Duration: 4.13 Min
 
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Duration: 5.03 Min
 
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Duration: 2.59 Min
 
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Duration: 1.51 Min
 
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Duration: 4.28 Min
 
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Duration: 5.14 Min
 
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Duration: 3.40 Min
 
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Duration: 4.06 Min
 
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Duration: 3.07 Min
 
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  1.  
  2. sir why is tan theta taken as 1/20 as they both dont make a right angle there the value of hypotmuse should be taken as 20 and opposite side(from angle theta) as 1 after that we should calculated the adjacent side of the triangle using pythagoras theoram which gives us the value of tan theta as 1/root(399)
    1 years ago by Shashwat

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  3.  
  4. hello sir , sir you have changed the value of radius = 3, from cm to meter but you haven't change 20 cm to m and sir the final answer is 0.8 * 10^-8
    5 years ago by shreyaa chaudhuri
    Ans 1 ->
    because length of string will not change
    5 years ago by Yogesh Vashisth

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  5.  
  6. Sir do we have to convert 1cm to m and 20cm to metre inorder to find tan theeta ?
    9 years ago by Rahul Ganotra
    Ans 1 ->
    dont cnvert !! its a ratio .. so obviosly even if u cnvert the cnvertion factore will cancel off in d numerator & denom ! or m/m=cm/cm implies unitless !!
    9 years ago by vishwanath v pai
    Ans 2 ->
    Salute to your reply vishwanath v pai
    6 years ago by Prakash Raj

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