Exploring Kid Children's Educational Toys Science and Technology Making Magnetic Experiment

Description Brand Exploring KidItem Name DIY assembly model of magnetic experiment science popularizationMaterial Plastic hardware ABS environmental protection plasticFeatures Understanding electromagnetsA device that has an iron core inside and uses a coil with current to make it magnetic like a magnet is called an electromagnet and it is usually made into a strip or hoof shape The iron core should be made of soft iron or silicon steel that is easy to magnetize and lose magnetism Such an electromagnet is magnetic when it is energized and disappears after a power failure The advantages of electromagnetsWhether the electromagnet is magnetic or not can be controlled by on and off current The magnitude of magnetism can be controlled by the strength of the current or the number of turns of the coil Ampere s ruleIt expresses the law of the relationship between the current and the direction of the magnetic field of force excited by the current also called the right hand spiral law 1 Ampere s rule in direct conduction Ampere s rule 1 Hold the direct current with your right hand and let your thumb point to the direction of the current then the direction of the four fingers is the direction of the magnetic line of induction 2 Ampere s law in the energized solenoid Ampere s rule 2 Hold the energized solenoid with your right hand make the four fingers bend in the same direction as the current then the end pointed by the thumb is the energized solenoid N pole The fa