AIIMS 2017
- Exam
- AIIMS
- Year
- 2017
- Subject
- Physics
- Chapter
- Electrostatics
AIIMS 2017 · Physics · Electrostatics
Assertion : If a dielectric is placed in external field then field...
Assertion : If a dielectric is placed in external field then field inside dielectric will be less than applied field.
Reason : Electric field will induce dipole moment opposite to field direction.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion.
- BIf both assertion and reason are true but reason is not the correct explanation of assertion.
- CIf assertion is true but reason is false.
- DIf both assertion and reason are false.
Correct answer
C. If assertion is true but reason is false.
Step-by-step solution
Dipole moment will be in the same direction as the external field. The collective effect of dipole moments produces a field that opposes the external field and hence, the net electric field inside the dielectric is less than the external electric field.