What are magnetic poles 6?
Answer: The two ends of a magnet where the magnetic force is maximum are called poles. Each magnet has two poles, i.e. north pole and south pole.
What is the purpose of a homopolar motor?
A homopolar motor creates rotational movement because of what is known as the Lorentz force. What’s happening is that electrical current is flowing from the positive terminal of the battery to the negative and into the magnet.
How does homopolar motor work for kids?
The homopolar motor causes a continuous circular motion that was engineered by the circular magnetic force around a wire that extended in a pool of mercury. Homopolar motors have two magnetic poles that are provided by the permanent magnet that is used to create the magnetic field.
What is north pole Class 6 science?
The end that points towards north direction is the north pole of the magnet while the end that points towards south direction is the south pole of the magnet.
What is the definition of north pole in science?
At the North Pole. The geographic North Pole is the northern point of the Earth’s axis of rotation. The North Pole is the northernmost point on Earth. It is the precise point of the intersection of the Earth’s axis and the Earth’s surface.
How do the north pole and south pole of a magnet work together?
Opposite poles attract, or pull, each other. In other words, the north pole of one magnet will click together with the south pole of another magnet, and two north poles will push each other away. The needle on the compass that normally points toward the north pole of the Earth will move toward the magnet’s south pole.
What is magnetic force in simple words?
magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. The magnetic force between two moving charges may be described as the effect exerted upon either charge by a magnetic field created by the other.
What is a homopolar motor simple explanation?
A homopolar motor is a direct current (DC) electric motor which produces constant circular motion. Because the polarities of the magnetic fields do not change (hence the name homopolar), the direction of the force will not change and the wire will rotate in a constant circular motion.
How do you make a simple homopolar motor?
Easy DIY Homopolar Motor
- Step 1: Gather Your Materials. For this instructable you need-
- Step 2: Make Battery and Magnet Assembly. Place the battery on top of a stack of small.
- Step 3: Make the Wire Coil. Take the pipe and wrap the copper wire around it in spiral.
- Step 4: Enjoy Spinning.
What is south pole Class 6?
A freely suspended bar magnet always points in north−south direction. The end that points towards north direction is the north pole of the magnet while the end that points towards south direction is the south pole of the magnet.
What does pole mean in science?
(Science: physics) One of the opposite or contrasted parts or directions in which a polar force is manifested; a point of maximum intensity of a force which has two such points, or which has polarity; as, the poles of a magnet; the north pole of a needle.
What is the difference between a 6 pole and 8 pole motor?
8-pole is 900 no-load (no slip). So, when you see a motor rated at 1075 RPM, it is a 6-pole motor with some allowance for load and slip. An 825 RPM motor is an 8-pole motor with some allowance for slip. A multi-tap/multi-speed single phase motor may have three or more “speed taps” on the motor.
What is the speed of a 50Hz 6 pole motor?
Also note that speed rating of the motor is at the KW rating. The speed you list for the motor is when it’s under full KW rating load. No load speed for a 50Hz 6pole motor will be 1000RPM and 8 pole is 750RPM (synchronous speed) and will “slip” down as torque requirements increase.
What does the number of poles of the motor reflect?
The number of poles reflects the synchronous speed of the motor. The 2-pole synchronous speed is 3000r/min, the 4-pole synchronous speed is 1500r/min, the 6-pole synchronous speed is 1000r/min, and the 8-pole synchronous speed is 750r/min. Number of poles of the motor: The number of poles of the motor determines the synchronous speed of the motor.
How many RPMS is a 2 pole motor?
2 poles or 1 pair of poles = 3,600 RPM (minus the slip speed = about 2,750 RPM or 6 -7% n) 4 poles or 2 pairs of poles = 1,800 RPM 6 poles or 3 pairs of poles = 1,200 RPM