JEE Main 2026 Physics question
Consider the equation , where H = magnetic field; E = electric field, ε = permittivity, x = distance, t = time. The values of p, q, r and s respectively are:
Answer: (A)
Solution
[H]=A L⁻¹, [ε]=M⁻¹L⁻³T⁴A², [E]=M L T⁻³A⁻¹. Matching M: −q+r=0; A: 2q−r=1, giving q=r=1; T: 4q−3r−s=0, giving s=1; L: p−3q+r=−1, giving p=1.