Answer:
Step-by-step explanation:
The region where the magnetic field around a current-carrying solenoid is uniform is inside the solenoid.
Yes, some current will be induced in coil Q if coil P is moved towards Q. This is due to the phenomenon of electromagnetic induction. When a changing magnetic field passes through a coil, it induces an electromotive force (EMF) in the coil, causing a current to flow. The movement of coil P towards coil Q will result in a changing magnetic field, inducing a current in coil Q.
If coil P is moved away from coil Q, the magnetic field passing through coil Q will decrease, resulting in a change in the magnetic flux. This change in magnetic flux will induce an EMF in coil Q, causing a current to flow in the opposite direction compared to the previous scenario.
iii. Some methods of inducing current in a coil include:
Moving a magnet towards or away from the coil
Changing the magnetic field through the coil by varying the current in a nearby coil
Rotating a coil in a magnetic field
Changing the area of the coil within a magnetic field
Comparison between a permanent magnet and an electromagnet:
Permanent Magnet: It is made of materials that are naturally magnetic, such as iron, cobalt, or nickel. It has a constant magnetic field and does not require an external power source to generate the magnetic field.
Electromagnet: It is made by wrapping a current-carrying coil (usually around an iron core). The magnetic field of an electromagnet can be controlled by varying the current flowing through the coil. It requires an external power source (such as a battery) to generate the magnetic field.
(i) If the amount of current in the conductor increases, the displacement of the conductor will experience a greater force. According to the right-hand rule, the force experienced by a current-carrying conductor is directly proportional to the current and the magnetic field strength. Therefore, an increase in current will result in a larger force and may lead to a greater displacement of the conductor.
(ii) If the horse shoe magnet is replaced by a weak horse shoe magnet, the displacement of the conductor may be less pronounced. This is because a weaker magnetic field will exert a smaller force on the current-carrying conductor, resulting in a reduced displacement.
The description of the circular metallic loop above the wire AB is missing. Please provide additional information or context for a more accurate response.