Solved papers for JEE Main & Advanced JEE Main Paper (Held On 11 April 2015)
done JEE Main Paper (Held On 11 April 2015) Total Questions - 3
question_answer1) A wire, of length L(=20 cm), is bent into a semi-circular arc. If the two equal halves, of the arc, were each to be uniformly charged with charges \[\pm Q.[|Q|={{10}^{3}}{{\varepsilon }_{0}}\]Coulomb where \[{{\varepsilon }_{0}}\]is the permittivity (in SI units) of free space] the net electric field at the centre 0 of the semi-circular arc would be :
[JEE Main Online Paper (Held On 11 April 2015)]
question_answer2) An electric field \[\overset{\to }{\mathop{E}}\,=\left( 25\,\hat{i}+30\hat{j} \right)N{{C}^{-1}}\] exists in a region of space. If the potential at the origin is taken to be zero then the potential at x = 2 m, y = 2 m is :
[JEE Main Online Paper (Held On 11 April 2015)]
question_answer3) In figure is shown a system of four capacitors connected across a 10 V battery. Charge that will flow from switch S when it is closed is:
[JEE Main Online Paper (Held On 11 April 2015)]