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Electromagnetism, etc. Q & A
The figure below shows a compass and a magnet. Label the poles of the magnet and draw the field lines on the magnet. Q#22
The three diagrams show the field lines between the poles of two magnets. Identify the poles A, B, C, D, E and F as north or south poles. Q#23
Label the poles of the solenoid below if the current flows in the wire in the direction shown. Q#24
Draw the meter reading that you would expect in each of the following cases: Q#25
Describe the effect of the speed of the magnet on the electricity produced in the coil of wire. Q#28
Name one other factor (other than speed of magnet and number of loops) that could affect on the electricity produced in the coil of wire. Describe the effect(s). Q#29
Name one factor that affects the magnetic field induced in an electromagnet. Q#30
Name one factor that affects the magnetic field induced in an electromagnet. Q#31
Name one factor that affects the magnetic field induced in an electromagnet. Q#32
Name one factor that affects the voltage induced in the secondary coil of a transformer. Q#33
Name two applications of an electromagnet. Q#35
Explain the Fleming ’ s Left-Hand Rule and when can one use it? Q#36
What is a motor? Q#37
What is a generator? Q#38
Explain the Solenoid Rule. Q#39
Give two applications of the motor effect. Q#40
Give one energy source that uses the principle of electromagnetic induction to produce electricity and one energy resource that does not. Q#41
Faradays Law of Induction A changing magnetic field induces an electric field. The induced electric field causes a current to flow in a conductor.
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