$(5$ points$)$ For Nitrogen gas, the molar specific heat at constant volume $lo{n}_V$ and the molar specific heat at constant pressure $C_P=q,$

$(5$ points$)$ A hoop of radius $R$ carnies uniform charge $Q.$ At its center, the electric field $|vec(E)|=$ and the electric potential $=$

$(5$ points$)$ A point charge $-2Q$ is placed in the center of a cube. The electric flux through each surface ${}_E=$ and through the whole surface ${}_E=q,$

$(5$ points$)$ A square of side length $a,$ its one side carries a current I. The magnetic field at the third corner $|B^{}|=$ and at the center $|vec(B)|=$

$(5$ points$)$ Three currents $I_0($flowing outwards$).2I_0($inwards$),$ and $3I_0($outwards$)$ pass through an Amperian loop. If the loop is anticlockwise $o{\displaystyle \underset{\phantom{}}{\overset{\phantom{}}{}}}$vec$(B)*dvec(s)=$

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$(5$ points$)$ A slit of width $0\mathrm{.}01$ mm is ithumimaticut by a tight of wavelength $500$ nm $.$ The screen is $1$ maway The first order dark tringe $y=$ and the width of the central beight briegs io $=$

$q,$

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