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1.

J = sigma E represents........ .

Answer»

Coulomb's law
Ampere's law
Ohm's law
Gauss's law

Solution :Ohm.s law
J = `sigma` E
`therefore (I)/(A)= (N)/(C) xx (1)/(Rm) [ "Unit of " sigma = (1)/(Omega m) , " Unit of " `
`E= (N)/(C) and " Unit of " J = (A)/(m^(2)) ]`
`therefore (I)/(m^(2)) = (N)/(CRm)`
`therefore I = (NM)/(CR) = (V)/(R) . ` Which is Ohm.s law.
`""[ because (Nm)/(C) = " VOLTAGE" ] `


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