Electromagnetic-theory Questions Set 40:
Quiz Mode
Do electrostatic field lines form closed loops?
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The speed of a DC shunt motor is:
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The core of a transformer is laminated to
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The electric field inside a hollow metallic charged sphere is:
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Two straight parallel conductors carry equal currents in opposite directions. The force between them is
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What is the property of an antenna at its resonant frequency?
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The primary winding of a transformer has 220 V and 5 A. What is the current in the secondary winding if the transformer has a turns ratio of 10:1?
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Convert the Cartesian coordinates (5, 3, 7) to spherical coordinates.
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If the distance between two charges is halved, what happens to the force between them?
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Which of the following statements about electric lines of force is false?
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