Advertisements
Advertisements
प्रश्न
The free electrons in a conducting wire are in constant thermal motion. If such a wire, carrying no current, is placed in a magnetic field, is there a magnetic force on each free electron? Is there a magnetic force on the wire?
टिप्पणी लिखिए
Advertisements
उत्तर
As the electrons are in motion, there is a magnetic force acting on them individually. But the current through the wire represents the collective motion of all the electrons that are moving or vibrating very randomly; so, overall effect is negligible. Hence there is no net magnetic force on the wire.
Also, F = LLB sin (θ)
So, if the current in the wire is zero, then the force experienced by the wire will also be zero.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
