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A suitable unit for expressing the strength of electric field is ____.

V/C

C/m

N/C

C/N

1 Vm-1 equals ____.

1 NC-1

1NC-2

1 Jm-1

1 Jm-2

I Me V is equal to ____.

1.6 x 10-19J

1.6 x 10-14J

1.6 x 10-13J

1.6 x 1013J

Electric potential at the surface of an atomic nucleus (z =50) of radius 9x10-13 cm is ____.

80 volts

8 x 106 volts

9 volts

9 x 105 volts

Three charges –q, Q and –q are placed at equal distance on a straight line. If the total potential energy of the system of three charges is zero, then the ratio Q : q is ____.

1 :2

2 :1

1 : 1

1 : 4

If two electrons are separated by a distance of 0.5A, then ratio of coulomb force and weight of electron is approximately ____.

1016

1018

1020

1022

Two positively charged particles each of mass 1.7 x 10-27 kg and carrying a charged of 1.6 x 10-19 are placed at a distance r apart. If each one experiences a repulsive force equal to its weight, then r is ____.

1.17 m

1.71 m

0.117 m

0.171 m

Ratio of the electrostatic to gravitational force between two electrons placed at a certain distance in air will be ____.

4.2 x1042

4.2 x 10-42

2.4 x 1024

2.4 x 10-24

Two charge +3.2 x 10-19 C and -3.2 x 10-19 C placed 2.4A apart from an electric dipole. It is placed in a uniform electric field of intensity 4x105 volts/m. The electric dipole moment is ____.

7.68 x 10-29 C x m

7.68 x 10-19 C x m

15.36 x 10-29 C x m

15.36 x 10-29 C x m

Work done in moving an electric charge q in an electric field does not depend upon ____.

magnitude of the charge

potential difference between two points

mass of the particle

All the above

V/C

C/m

N/C

C/N

1 Vm-1 equals ____.

1 NC-1

1NC-2

1 Jm-1

1 Jm-2

I Me V is equal to ____.

1.6 x 10-19J

1.6 x 10-14J

1.6 x 10-13J

1.6 x 1013J

Electric potential at the surface of an atomic nucleus (z =50) of radius 9x10-13 cm is ____.

80 volts

8 x 106 volts

9 volts

9 x 105 volts

Three charges –q, Q and –q are placed at equal distance on a straight line. If the total potential energy of the system of three charges is zero, then the ratio Q : q is ____.

1 :2

2 :1

1 : 1

1 : 4

If two electrons are separated by a distance of 0.5A, then ratio of coulomb force and weight of electron is approximately ____.

1016

1018

1020

1022

Two positively charged particles each of mass 1.7 x 10-27 kg and carrying a charged of 1.6 x 10-19 are placed at a distance r apart. If each one experiences a repulsive force equal to its weight, then r is ____.

1.17 m

1.71 m

0.117 m

0.171 m

Ratio of the electrostatic to gravitational force between two electrons placed at a certain distance in air will be ____.

4.2 x1042

4.2 x 10-42

2.4 x 1024

2.4 x 10-24

Two charge +3.2 x 10-19 C and -3.2 x 10-19 C placed 2.4A apart from an electric dipole. It is placed in a uniform electric field of intensity 4x105 volts/m. The electric dipole moment is ____.

7.68 x 10-29 C x m

7.68 x 10-19 C x m

15.36 x 10-29 C x m

15.36 x 10-29 C x m

Work done in moving an electric charge q in an electric field does not depend upon ____.

magnitude of the charge

potential difference between two points

mass of the particle

All the above

Questions are from coulomb's law potential and some on units

AIEEE Physics: Electrostatics IIT JEE Physics AIPMT Physics: Electrostatics Electrostatics XII CBSE I.SC

some test really get very bad results as the answers given by the tutors are wrong plz do correct them all thank u!!!!!!!!!!!!

2401 days 6 hours 17 minutes ago

mam can you explain me wat is efflux, torrcelis law

3937 days 11 hours 28 minutes ago

mam,i had take one test of your's,,but i found that you have given wrong answers of Ist 2 questions....please check them out and send me the explanation......gud morning!

4260 days 16 hours 36 minutes ago

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