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  • An electric current passes through non - uniform cross - section wire made of homogenous and isotrophic material. If the JP and JQ be the current densities and E<sub

An electric current passes through non - uniform cross - section wire made of homogenous and isotrophic material. If the JP and JQ be the current densities and EP and EQ be the electric field intensities at P and Q respectively then

 

Option: 1

JP > JQ ; EP > EQ


Option: 2

JP > JQ ; EP < EQ


Option: 3

JP < JQ ; EP > EQ


Option: 4

JP < JQ ; EP < EQ


Answers (1)

best_answer

A_P<A_Q

J\propto \frac{1}{A}

J\propto E

\therefore J_P > J_Q ; E_P > E_Q

Posted by

mansi

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