If a non-polar substance is placed in an electric field, what will happen?

A net dipole moment will be observed

The substance will orient itself perpendicular to the electric field

Explore topic-wise MCQs in Physics.

This section includes 7 Mcqs, each offering curated multiple-choice questions to sharpen your Physics knowledge and support exam preparation. Choose a topic below to get started.

1.	If a non-polar substance is placed in an electric field, what will happen?
A.	A net dipole moment will be observed
B.	The substance will oscillate
C.	The substance will orient itself perpendicular to the electric field
D.	It will conduct electricity
Answer» B. The substance will oscillate

Discussion

2.	1uC and -1uC are placed at a distance of 5 cm forming a dipole. What is the amount of torque required to place the dipole perpendicularly to an electric field of 3*10⁵ N/C?
A.	5*10<sup>-3</sup> N. m
B.	15*10<sup>-3</sup> N. m
C.	1*10<sup>-3</sup> N. m
D.	10*10<sup>-3</sup> N. m
Answer» C. 1*10<sup>-3</sup> N. m

Discussion

3.	An electric dipole will be in stable equilibrium if the angle between the axis of the dipole and the electric field is ________
A.	0 degree
B.	180 degree
C.	90 degree
D.	45 degree
Answer» B. 180 degree

Discussion

4.	If an electric dipole is placed in a non-uniform electric field ______ will act on the dipole.
A.	A force but no torque
B.	Both force and torque
C.	Torque but no force
D.	No torque or force
Answer» C. Torque but no force

Discussion

5.	A dipole is placed in an electric field such that the axis of the dipole is parallel to the electric field. The torque acting on the dipole will be the maximum in this case. The statement is _____
A.	True
B.	False
Answer» C.

Discussion

6.	If an electric dipole is placed in a uniform electric field ______ will act on the dipole.
A.	A force but no torque
B.	Both force and torque
C.	Torque but no force
D.	No torque or force
Answer» D. No torque or force

Discussion

7.	A dipole, having dipole moment ( vec{p} ) is placed in an electric field ( vec{E} ). What will be the torque acting on the dipole?
A.	( vec{p}. vec{E} )
B.	( vec{p}+ vec{E} )
C.	( vec{p} times vec{E} )
D.	( vec{p}- vec{E} )
Answer» D. ( vec{p}- vec{E} )

Discussion

Explore topic-wise MCQs in Physics.

If a non-polar substance is placed in an electric field, what will happen?

1uC and -1uC are placed at a distance of 5 cm forming a dipole. What is the amount of torque required to place the dipole perpendicularly to an electric field of 3*105 N/C?

An electric dipole will be in stable equilibrium if the angle between the axis of the dipole and the electric field is ________

If an electric dipole is placed in a non-uniform electric field ______ will act on the dipole.

A dipole is placed in an electric field such that the axis of the dipole is parallel to the electric field. The torque acting on the dipole will be the maximum in this case. The statement is _____

If an electric dipole is placed in a uniform electric field ______ will act on the dipole.

A dipole, having dipole moment ( vec{p} ) is placed in an electric field ( vec{E} ). What will be the torque acting on the dipole?

1uC and -1uC are placed at a distance of 5 cm forming a dipole. What is the amount of torque required to place the dipole perpendicularly to an electric field of 3*10⁵ N/C?