JEE Main20254 Apr 2025Morning ShiftPhysicsUnits and DimensionsActual
In an electromagnetic system, the quantity representing the ratio of electric flux and magnetic flux has dimension of M ^ P L ^ Q T ^ R A ^ S , where value of ' Q ' and ' R ' are
Options
- A(3,-5)
- B(-2,2)
- C(-2,1)
- D(1,-1)
Correct answer
D. (1,-1)
Step-by-step solution
aligned & _ E _ M = EA BA = E B & ~B = M T ⁻² ATLT ⁻¹ & So [ E B ]= ML ⁻³ ~A ⁻¹ MT ⁻² ~A ⁻¹ = LT ⁻¹ aligned aligned & Or & E=c B & [ E B ]=L T⁻¹ aligned