Magnetism and Magnetic Fields 1. True or False: Isolated magnetic poles can be f

Question

Magnetism and Magnetic Fields

1. True or False: Isolated magnetic poles can be found in nature, just like isolated electric charges.
2. True or False: The south pole of a magnet attracts the north pole of a compass.
3. True or False: The planet Earth’s geographic North Pole attracts the north pole of a compass.

(2)
9. A triangular circuit is formed with a current of 2A running through each wire, and a magnetic field of magnitude 0.4T is directed perpendicularly to the circuit into the page.
a.) Find the magnetic force acting on all three wires within the circuit.
b.) Find the net force on the circuit. (Show your work for full credit!)


Magnetism and Magnetic Fields

1. True or False: Isolated magnetic poles can be found in nature, just like isolated electric charges.
2. True or False: The south pole of a magnet attracts the north pole of a compass.
3. True or False: The planet Earth’s geographic North Pole attracts the north pole of a compass.

(2)
9. A triangular circuit is formed with a current of 2A running through each wire, and a magnetic field of magnitude 0.4T is directed perpendicularly to the circuit into the page.
a.) Find the magnetic force acting on all three wires within the circuit.
b.) Find the net force on the circuit. (Show your work for full credit!)

Explanation / Answer

1. Isolated magnetic poles can be found in nature, just like isolated electric charges. False.
The above statement proposes the known existence of the magnetic monopole, or magnetic charge, which has never been discovered. It has been theorized that the magnetic monopole may have existed shortly after the big bang when energy density in the early expanding (inflating) universe was very high, but there is no conclusive evidence. When CERN's LHC (Large Hadron Collider) in Geneva, Switzerland is able to generate higher and higher energies, the existence of the magnetic monopole may be further investigated.
Electric monopoles, dipoles, quadrupoles, etc. have been discovered, but only magnetic dipoles, quadrupoles, etc. have been observed. 2. The south pole of a magnet attracts the north pole of a compass. True.
Put two north poles together, they repel. Put two south poles together, they repel. Put a north and south together, they attract. 3. The planet Earth's geographic North Pole attracts the north pole of a magnet. True. This is because the Earth's geographic North Pole is a magnetic south pole, and the Earth's geographic South pole is a magnetic north pole, So the Earth's geographic North Pole (magnetic south p.) attracts the north pole of a magnet.

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