Curioustab
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Take Free Test
Aptitude
General Knowledge
Verbal Reasoning
Computer Science
Interview
Take Free Test
Home
»
Computer Science
»
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 repel, while unlike poles attract
Current flowing through a conductor generates a magnetic field
Like magnetic poles attract, while unlike poles repel
None of the above
Correct Answer:
Current flowing through a conductor generates a magnetic field
← Previous Question
Next Question→
More Questions from
Electronic Principles
A current source has an internal resistance of 100 kW. What is the largest load resistance if the current source must appear stiff?
Which one of the following devices is most often used for measuring electrical potential difference?
Silicon atoms combine into an orderly pattern called a
The rotating coil of wire in an electric motor is called the:
Electron current is flowing through a conductor in a direction you might describe as straight into this page. What is the direction of the resulting magnetic field?
Which one of the following statements most accurately applies to the frequency of a waveform?
What is the smallest number of polarities required for current flow?
The value of a capacitor can be made larger by:
Which one of the following equations most directly determines the power dissipation of a resistance when you know the voltage drop and amount of resistance?
Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff?
Discussion & Comments
No comments yet. Be the first to comment!
Name:
Comment:
Post Comment
Join Discussion
Discussion & Comments