Electronic Principles
Which one of the following principles best describes the basic operation of an electromagnet?

Current is induced in a conductor that is moving through a magnetic field
Like magnetic poles attract, while unlike poles repel
Like magnetic poles repel, while unlike poles attract
None of these
Current flowing through a conductor generates a magnetic field

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Electronic Principles
A circuit has a Norton current of 10 mA and a Norton resistance of 10 kW. What is the Thevenin circuit?

None of these
1000 V and a parallel resistance of 10 kOhm
100 V and a series resistance of 10 k Ohm
100 V and a parallel resistance of 10 k Ohm
1000 V and a series resistance of 10 k Ohm

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