## Electric dipole, Flux and Gauss’s Law- MCQ-Basic

Physics is an important subject in preparation for various Competitive exams. To keep a track of your preparation we have designed a small quiz of 10 Basic Level Questions on Electric dipole, Flux and Gauss’s Law.You have 10 minutes to solve the quiz, click the start timer button in order to start the timer and then click on submit button at the end to submit the quiz and view your scores and correct answers.

Q1. An electric dipole has the magnitude of its charge as q and its dipole moment is p. It is placed in a uniform electric field E. If its dipole moment is along the direction of the field, the force on it and its potential energy are respectively

•  q.E and p.E
•  Zero and minimum
•  q.E and maximum
•  2q.E and minimum

Zero and minimum

Q2. The potential at a point due to an electric dipole will be maximum and minimum when the angles between the axis of the dipole and the line joining the point to the dipole are respectively

•  90o and 180o
•  0o and 90o
•  90o and 0o
•  0o and 180o

0o and 90o

Q3. According to Gauss’s theorem, electric field of an infinitely long straight wire is proportional to

•  r
•  1/r2
•  1/r3
•  1/r

1/r

Q4. The electric field at a distance ‘r’ from an electric dipole is proportional to

•  1/r
•  1/r2
•  1/r3
•  r2

1/r3

Q5. Water is an excellent solvent because its molecules are

•  Neutral
•  Highly polar
•  Non-polar
•  Anodes

Highly polar

Q6. An electric dipole is placed in an electric field generated by a point charge

•  The net electric force on the dipole must be zero
•  The net electric force on the dipole may be zero
•  The torque on the dipole due to the field must be zero
•  The torque on the dipole due to the field may be zero

The torque on the dipole due to the field may be zero

Q7. The electric field at a point on equatorial line of a dipole and direction of the dipole

•  Will be parallel
•  Will be in opposite direction
•  Will be perpendicular
•  Are not related

Will be in opposite direction

Q8. An electric dipole when place in a uniform electric field E will have minimum potential energy, if the positive direction of dipole moment makes the following angle with E

•  Ď€
•  Ď€/2
•  Zero
•  3Ď€/2

Zero

Q9. The distance between a proton and electron both having a charge 1.6 X 10–19 coulomb, of a hydrogen atom is metre 10-10 . The value of intensity of electric field produced on electrons due to proton will be

•  2.304 X 10-10N/C
•  14.4 V/m
•  16 V/m
•  1.44 X 1011N/C

1.44 X 1011N/C

Q10. Two electric dipoles of moment P and 64 P are placed in opposite direction on a line at a distance of 25 cm. The electric field will be zero at point between the dipoles whose distance from the dipole of moment P is

•  5 cm
•  25/9 cm
•  10 cm
•  4/13 cm

5 cm

## Want to know more

Please fill in the details below:

## Latest NEET Articles\$type=three\$c=3\$author=hide\$comment=hide\$rm=hide\$date=hide\$snippet=hide

Name

ltr
item
BEST NEET COACHING CENTER | BEST IIT JEE COACHING INSTITUTE | BEST NEET & IIT JEE COACHING: Electric dipole, Flux and Gauss’s Law- MCQ-Basic
Electric dipole, Flux and Gauss’s Law- MCQ-Basic