One advantage for physiological effects of electric current
  • Respiratory paralysys
  • Organ start to burn
  • Tissue start to burn
  • Galvanotherapy
One disadvantage for physiological effects of electric current
  • Respiratory paralysys
  • Electro Shocker – for the safety
  • To do echo-cardiogram
  • Galvanotherapy
What kind of process don't go when observe the chemical effect of electric current
  • Formation of gas bubbles at the electrodes
  • Deposit of metal on the electrodes
  • Electric motor begin to move
  • Change in colour of the solution
How does electric current create a magnetic field?
  • Electric current creates a magnetic field by heating the conductor.
  • Electric current generates a magnetic field only in superconductors.
  • Electric current produces a magnetic field through static electricity.
  • Electric current creates a magnetic field by the movement of charged particles, as described by Ampère's law.
What is the relationship between the strength of the current and the magnetic field?
  • The strength of the current is directly proportional to the strength of the magnetic field.
  • The strength of the magnetic field is independent of the current.
  • The strength of the current has no effect on the magnetic field.
  • The strength of the current is inversely proportional to the strength of the magnetic field.
Name one factor that affects the strength of an electromagnet.
  • Distance from the power source
  • Electric current
  • Magnetic field strength
  • Type of material
How does the number of coils in a wire affect the strength of an electromagnet?
  • The number of coils has no effect on the strength of an electromagnet.
  • Increasing the number of coils in a wire increases the strength of an electromagnet.
  • More coils make the electromagnet weaker due to resistance.
  • Increasing the number of coils decreases the strength of an electromagnet.
What materials are commonly used for the core of an electromagnet?
  • Copper, aluminum, plastic
  • Lead, zinc, brass
  • Wood, glass, rubber
  • Iron, steel, ferrite
How does the voltage applied to an electromagnet influence its strength?
  • Higher voltage decreases the current, weakening the electromagnet.
  • Higher voltage increases the current, which strengthens the electromagnet.
  • Lower voltage increases the strength of the electromagnet.
  • Voltage has no effect on the strength of an electromagnet.
Can an electromagnet be turned on and off? Why or why not?
  • Yes, but only if it is made of permanent magnets.
  • No, electromagnets are always on and cannot be controlled.
  • Yes, an electromagnet can be turned on and off.
  • No, an electromagnet cannot be turned on and off because it requires a constant power supply.
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