Podcast
Questions and Answers
What is the term used to describe the region around a magnet where the magnet has an effect?
What is the term used to describe the region around a magnet where the magnet has an effect?
- Magnetic domain
- Magnetic field (correct)
- Magnetic zone
- Magnetic center
Which pole of a magnet is known as the north pole?
Which pole of a magnet is known as the north pole?
- North-seeking pole (correct)
- South pole
- South-seeking pole
- East pole
How would you plot a magnetic field due to a bar magnet on a blank sheet of paper?
How would you plot a magnetic field due to a bar magnet on a blank sheet of paper?
- Use colored pencils to sketch the field
- Position the bar magnet at the edge of the paper
- Place a compass at the end of the magnet and draw dots at both ends of the compass needle (correct)
- Use a protractor to draw lines
What is the Earth's magnetic field compared to in terms of its behavior?
What is the Earth's magnetic field compared to in terms of its behavior?
What type of magnet is constructed from a soft iron core with a coil of wire wound around it?
What type of magnet is constructed from a soft iron core with a coil of wire wound around it?
What is the SI unit of magnetic flux density?
What is the SI unit of magnetic flux density?
Which law states that the direction of the induced emf is always such as to oppose the change causing it?
Which law states that the direction of the induced emf is always such as to oppose the change causing it?
What is the principle on which transformers operate?
What is the principle on which transformers operate?
What is the formula for the force on a charged particle moving through a magnetic field?
What is the formula for the force on a charged particle moving through a magnetic field?
Which device converts mechanical energy into electrical energy by rotating a coil of wire within a magnetic field?
Which device converts mechanical energy into electrical energy by rotating a coil of wire within a magnetic field?
What is the SI unit of magnetic flux?
What is the SI unit of magnetic flux?
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