A property of a magnet is that it will always point in the north and south direction, when
a) submerged in oil
b) charged with electricity
c) it is demagnetized
d) in the presence of iron filings
e) freely suspended in the air
Answer: E
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Power Engineering Chapter 79
- When magnetic flux lines travel and meet in opposing directions the result can be
- When using Fleming's Left Hand Rule, the second finger represents:
- When using Fleming's Left Hand Rule, the thumb represents:
- The major difference between an AC and a DC generator is that a AC generator has:
- In right hand rule, the second finger points to:
- In right hand rule, the index finger points to:
- In right hand rule, the thumb points to:
- The galvanometer is?
- In a solenoid valve, the valve is open when?
- The strength of the magnetic flux about an electromagnet is:
- The purpose of a rectifier is to:
- The minimum voltage generated by a single loop DC generator occurs when the conductor is traveling relative to the magnetic lines of force at an angle of:
- Magnetite is also known as:
- If a material has a low reluctance, it has a high
- The major difference between an AC and a DC generator is that a DC generator has:
- When using Fleming's Left Hand Rule, the index finger represents:
- Magnetic flux can be said to be:
- A current carrying conductor being moved by a magnetic field is the principle known as:
- Iron and steel may be magnetized by rubbing the metal with a:
- A conductor supplied with current while in a magnetic field will:
- When current flows in a conductor:
- If a material provides resistance to magnetic flux, it is demonstrating:
- The total number of lines of force in a magnetic field is:
- The property that determines whether a material will be easily magnetized or not is called: