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Solution


Q.

Which of the following Maxwell’s equations is valid for time varying conditions but not valid for static conditions                   [2023]
1 ∮B→·dl→=μ0I  
2 ∮E→·dl→=0  
3 ∮E→·dl→=-∂ϕB∂t  
4 ∮D→·dA→=Q  

Ans.

(3)

Based on equations of Maxwell