NEET 2020 Phase 1 | Electrostatics Question 21 | Physics

A short electric dipole has a dipole moment of 16 $$ \times $$ 10^-9 Cm. The electric potential due to the dipole at a point at a distance of 0.6 m from the centre of the dipole, situated on a line making an angle of $$60^\circ $$ with the dipole axis is :

$$\left( {{1 \over {4\pi {\varepsilon _0}}} = 9 \times {{10}^9}N{m^2}/{C^2}} \right)$$

200 V

400 V

zero

50 V

NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

In a certain region of space with volume 0.2 m³, the electric potential is found to be 5 V throughout. The magnitude of electric field in this region is :

0.5 N/C

1 N/C

5 N/C

zero

NEET 2020 Phase 1

MCQ (Single Correct Answer)

-1

A spherical conductor of radius 10 cm has a charge of 3.2 $$ \times $$ 10^-7 C distributed uniformly. That is the magnetude of electric field at a point 15 cm from the centre of the sphere?
$$\left( {{1 \over {4\pi {\varepsilon _0}}} = 9 \times {{10}^9}N{m^2}/{c^2}} \right)$$

1.28 $$ \times $$ 10⁵ N/C

1.28 $$ \times $$ 10⁶ N/C

1.28 $$ \times $$ 10⁷ N/C

1.28 $$ \times $$ 10⁴ N/C

NEET 2019

MCQ (Single Correct Answer)

-1

A hollow metal sphere of radius R is uniformly charged. The electric field due to the sphere at a distance r from the centre :

zero as r increases for r < R, decreases as r increases for r > R

zero as r increases for r < R, increases as r increases for r > R.

decreases as r increases for r < R and for r > R.

increases as r increases for r < R and for r > R.

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