NEET
- Exam
- NEET
- Subject
- Physics
- Chapter
- Magnetic Effects of Current
NEET · Physics · Magnetic Effects of Current
Statement I A vertical iron rod has a coil of wire wound over it at...
Statement I A vertical iron rod has a coil of wire wound over it at the bottom end. An alternating current flows in the coil. The rod goes through a conducting ring as shown in the figure. The ring can float at a certain height above the coil.
Statement II In the above situation, a current is induced in the ring which interacts with the horizontal component of the magnetic field to produce an average force in the the upward direction.
Options
- AStatement I is true, Statement II is true; Statement II is a correct explanation for Statement
- BStatement I is true, Statement II is true; Statement II is NOT a correct explanation for Statement I
- CStatement I is true, Statement II is false
- DStatement I is false, Statement II is true
Correct answer
A. Statement I is true, Statement II is true; Statement II is a correct explanation for Statement
Step-by-step solution
The induced current in the ring will interact with horizontal component of magnetic field and both will repel each other.
This repulsion will balance the weight of ring.