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In electrodynamics, the set of transformation rules for components of  E  and B  are given as follows :
Here ' ~' denotes the components of E and B in a reference frame moving along the x-axis with speed v
Choose the correct statement.
  • a)
    E2 - B2c2 is a relativistically invariant quantity 
  • b)
     is a relativistically invariant quantity 
  • c)
     is not a relativistically invariant quantity 
  • d)
    E2 - B2c2 is not a relativistically invariant quantity
Correct answer is option 'A,B'. Can you explain this answer?
Verified Answer
In electrodynamics, the set of transformation rules for components ofE...
Consider the dot product 




∴  E.B is relativistically in invariant
Consider the quantity 


Now (1) – (2)


Invariant !
The correct answers are:   is a relativistically invariant quantity, E2 - B2cis a relativistically invariant quantity
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In electrodynamics, the set of transformation rules for components ofE andB are given as follows :Here ' ~' denotes the components ofEandBin a reference frame moving along thex-axis with speedvChoose the correct statement.a)E2 - B2c2 is a relativistically invariant quantityb)is a relativistically invariant quantityc)is not a relativistically invariant quantityd)E2 - B2c2is not a relativistically invariant quantityCorrect answer is option 'A,B'. Can you explain this answer? for Physics 2026 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about In electrodynamics, the set of transformation rules for components ofE andB are given as follows :Here ' ~' denotes the components ofEandBin a reference frame moving along thex-axis with speedvChoose the correct statement.a)E2 - B2c2 is a relativistically invariant quantityb)is a relativistically invariant quantityc)is not a relativistically invariant quantityd)E2 - B2c2is not a relativistically invariant quantityCorrect answer is option 'A,B'. Can you explain this answer? covers all topics & solutions for Physics 2026 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In electrodynamics, the set of transformation rules for components ofE andB are given as follows :Here ' ~' denotes the components ofEandBin a reference frame moving along thex-axis with speedvChoose the correct statement.a)E2 - B2c2 is a relativistically invariant quantityb)is a relativistically invariant quantityc)is not a relativistically invariant quantityd)E2 - B2c2is not a relativistically invariant quantityCorrect answer is option 'A,B'. Can you explain this answer?.
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