SIGMAKUNNN

the same poles of a magnet will....

• the same poles attract

• the same poles repel

how does magnetic induction work

• Magnetic induction works by generating heat in a conductor when exposed to a magnetic field.
• Magnetic induction works by repelling magnetic fields from a conductor.
• Magnetic induction works by creating a vacuum around a conductor to prevent magnetic interference.
• Magnetic induction works by inducing an electromotive force (EMF) in a conductor when there is a change in the magnetic field passing through the conductor.

how does a motor work

• CCC has a B. Temp mag also has a B. the 3 magnetic fields interact. a resultant force is produced

• BBC has a CCC. Perm mag also has a B. the 2 magnetic fields interact. a resultant force is produced

• CCC has a B. Perm magnet also has a B. the 2 magnetic fields interact. a repulsive force is created

• CCC has a B. Perm magnet also has a B. the 2 magnetic fields interact. A resultant force is created.

how an electromagnet works

• when current flows electromagnet is magnetized. when current stop electromagnet is demagnetized.

• when current flows electromagnet is demagnetized. when current stop electromagnet is magnetized.

• when heat flows electromagnet is magnetized. when current stop electromagnet is demagnetized.

• when current flows electromagnet is magnetized. when heat stop electromagnet is demagnetized.

the process of transformer working

• The transformer creates electricity from nothing
• The secondary coil induces a voltage in the primary coil
• Electromagnetic induction in the primary coil creates a changing magnetic field, inducing a emf in the secondary coil.

• The primary coil is not involved in the process

Alpha particles nature

• Positively charged particles consisting of two protons and two neutrons
• Positively charged particles consisting of two electrons and two neutrons
• Neutral particles consisting of two electrons and two protons
• Negatively charged particles consisting of two protons and two neutrons

Alpha particle is also similar to??

• Gamma ray
• Neutron
• Helium nuclei

• Beta particle

why use a step up transformer?

• To decrease voltage level in electrical systems
• To maintain the same voltage level in electrical systems
• To convert AC to DC power
• To increase voltage level in electrical systems.

why use a step down transformer?

• To reduce the voltage level from a higher value to a lower value.
• To amplify the signal
• To convert AC to DC
• To increase the voltage level

why isn't a higher current use in transformer?

• Higher current leads to increased power losses and decreased efficiency in a transformer.
• Increasing current has no impact on power losses in a transformer.
• Higher current results in better efficiency in a transformer.
• Higher current leads to reduced voltage output in a transformer.