• Study Resource
• Explore

Survey

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts

Lorentz force wikipedia, lookup

Aharonov–Bohm effect wikipedia, lookup

Electromagnet wikipedia, lookup

Magnetic monopole wikipedia, lookup

Field (physics) wikipedia, lookup

Maxwell's equations wikipedia, lookup

Superconductivity wikipedia, lookup

Electromagnetism wikipedia, lookup

History of electromagnetic theory wikipedia, lookup

Magnetic field wikipedia, lookup

Neutron magnetic moment wikipedia, lookup

Work (physics) wikipedia, lookup

Anti-gravity wikipedia, lookup

Force wikipedia, lookup

Fundamental interaction wikipedia, lookup

Transcript
```A coil, mounted on an axle, has its plane parallel to the flux lines of a uniform magnetic field B, as
shown. When a current I is switched on, and before the coil is allowed to move,
A
there are no forces due to B on the sides SP and QR.
B
there are no forces due to B on the sides PQ and RS.
C
sides SP and QR tend to attract each other.
D
sides PQ and RS tend to attract each other.
(Total 1 mark)
12
(a)
A satellite moves in a circular orbit at constant speed. Explain why its speed does not
change even though it is acted on by a force.
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
........................................................................................................................
(3)
(b)
At a certain point along the orbit of a satellite in uniform circular motion, the Earthâs
magnetic flux density has a component of 56 Î¼T towards the centre of the Earth and a
component of 17 Î¼T in a direction perpendicular to the plane of the orbit.
(i)
Calculate the magnitude of the resultant magnetic flux density at this point.
...............................................................................................................
...............................................................................................................
Page 9 of 34
```
Related documents