In a solenoid valve, the valve is open when?
a. Current flow has stopped
b. Magnetic flux is increased
Answer: B
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Power Engineering Chapter 79
- A property of a magnet is that it will always point in the north and south direction, when
- 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?
- 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: