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#10 | Electric Field Superposition : 2 Electric Dipole

(Physics) > Electric Charges and Fields

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Eight dipoles of charges of magnitude *e* are placed inside a cube. The total electric flux coming out of the cube will be

(1) $\frac{8e}{{\epsilon}_{0}}$

(2) $\frac{16e}{{\epsilon}_{0}}$

(3) $\frac{e}{{\epsilon}_{0}}$

(4) Zero

PMT - 1998

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An electric dipole is place at an angle of ${30}^{\circ}$ with an electric field intensity 2$\times {10}^{5}$ N/C. it experiences a torque equal to 4 Nm. The charge on the diploe, if the dipole length is 2 cm, is

(a) 8 mC (b) 2 mC

(c) 5 mC (d) 7 $\mu $C

NEET - 2016

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An electric dipole of moment p is placed in an electric field of intensity E. The dipole acquires a position such that the axis of the dipole makes an angle $\theta $ with the direction of the field. Assuming that the potential energy of the dipole to be zero when $\theta =90\xb0$,the torque and the potential energy of the dipole will respectively be

(a)$pE\mathrm{sin}\theta ,-pE\mathrm{cos}\theta $

(b)$pE\mathrm{sin}\theta ,-2pE\mathrm{cos}\theta $

(c)$pE\mathrm{sin}\theta ,2pE\mathrm{cos}\theta $

(d)$pE\mathrm{cos}\theta ,-pE\mathrm{sin}\theta $

NEET - 2012

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