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| 1 | Like magnetic poles repel each other and unlike poles attract. |
 | A) | True |
| B) | False |
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| 2 | Magnetic field lines are unaffected by air, paper, glass, and wood. |
| A) | True |
| B) | False |
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| 3 | Magnetic field lines always cross each other but never push apart from each other. |
| A) | True |
| B) | False |
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| 4 | The earth's geographic North Pole has north magnetic polarity and the geographic South Pole has south magnetic polarity. |
| A) | True |
| B) | False |
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| 5 | The entire group of magnetic field lines which can be considered flowing outward from the north pole of a magnet is called magnetic flux. |
| A) | True |
| B) | False |
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| 6 | One Gilbert unit equals one magnetic field line. |
| A) | True |
| B) | False |
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| 7 | The microweber is larger than the Maxwell unit. |
| A) | True |
| B) | False |
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| 8 | In the cgs system, the maxwell is one line per square centimeter. |
| A) | True |
| B) | False |
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| 9 | Flux includes total area, whereas flux density is for a specified unit area. |
| A) | True |
| B) | False |
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| 10 | The electric or magnetic effect of one body on another without any physical contact between them is called . |
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| 11 | The ability to concentrate magnetic flux is called . |
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| 12 | The wire wrapped in a form of a coil that causes the magnetic field to become more concentrated in an electromagnet is referred to as a(n) . |
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| 13 | Preventing one component from affecting another through their common electric or magnetic field is called . |
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| 14 | Magnetic field lines are unaffected by materials such as air, paper, or plastics. |
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| 15 | The earth's geographic Pole has south magnetic polarity. |
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| 16 | One per square meter is called a tesla. |
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| 17 | An electromagnet is a with contacts that are opened or closed by an electromagnet. |
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| 18 | What are the base units for permeability? |
| A) | maxwell |
| B) | tesla |
| C) | weber |
| D) | there are none |
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| 19 | What materials become strongly magnetized in the same direction as the magnetizing field with high values of permeability? |
| A) | ferromagnetic |
| B) | paramagnetic |
| C) | diamagnetic |
| D) | electromagnetic |
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| 20 | What device concentrates the magnetic field of the current in a wire and serves as a simple RF choke? |
| A) | ferrite core |
| B) | ferrite rod |
| C) | ferrite bead |
| D) | ferrite coil |
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| 21 | The best shield for a component in a steady magnetic field is a |
| A) | good magnetic material |
| B) | diamagnetic material |
| C) | housing made of aluminum |
| D) | housing made of copper |
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| 22 | The entire group of magnetic field lines, which can be considered flowing outward from the north pole of a magnet, is called |
| A) | a domain |
| B) | a dipole |
| C) | magnetic flux |
| D) | electromagnetism |
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| 23 | One weber equals |
| A) | one magnetic field line |
| B) | 1 x 108 line |
| C) | 0.001 maxwells |
| D) | 50 μMx |
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| 24 | In the cgs system, the unit that is one line per square centimeter is |
| A) | flux density |
| B) | maxwell |
| C) | gilbert |
| D) | gauss |
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| 25 | What magnetic effect is at the heart of such technologies as antilock brake sensors and some keyboards? |
| A) | Tesla effect |
| B) | Gauss effect |
| C) | Maxwell effect |
| D) | Hall effect |