Field Strength of an Electromagnet Quiz

Use this circuit diagram to answer the question: What component is represented by the symbol C?

• Electromagnet

• Hall Effect Sensor

• Core material of an electromagnet

• Power supply

• Voltage amplifier

What does component D do? Choose all the correct answers.

• It generates a magnetic field

• It amplifies the current change through the coil

• It amplifies the voltage change from the Hall Effect sensor

• It supplies power to the Hall Effect sensor

• It provides an output voltage proportional to magnetic flux density

Complete the following sentence. The A1 NULL control on the Electromagnetism card is used to set the [ blank ] to zero.

• Supply voltage

• Output voltage of the amplifier

• Output voltage

• Input voltage of the amplifier

Which of these graphs correctly shows the relationship between coil current (I) and magnetic flux density (B) for an electromagnet?

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Which of these core materials will produce the highest level of magnetic flux density inside an electromagnet?

• Air

• Brass

• Iron