Alternating Current Generator MDCAT Quiz Generator, commonly called an alternator, is a device that converts mechanical energy into electrical energy based on the principle of electromagnetic induction. The AC generator generates an electromotive force (emf) in the coil of wire when it is rotated within the magnetic field by applying Faraday’s Law. Hence, changing the direction of the induced current with the rotation of the coil produces an alternating current. In other words, the frequency of the alternating current depends upon the speed of rotation and the number of coils used in the generator. In the MDCAT paper, an AC generator can be understood while attempting problems related to electromagnetic induction, conversion of energy, and power generation systems.
Alternating Current Generator MDCAT Quiz
An MDCAT Quiz on AC Generators will help you solidify your understanding of how mechanical energy is converted into electrical energy. These quizzes deal with such topics as induced emf calculations, the relationship between coil rotation and current frequency, and the role of the magnetic field in generating AC. Practice regularly with these quizzes to improve your skills in solving problems and prepare well for related questions on the MDCAT exam.
- Test Name: Alternating Current Generator MDCAT Quiz
- Type: Quiz Test
- Total Questions: 30
- Total Marks: 30
- Time: 30 minutes
Note: Answer of the questions will change randomly each time you start the test, once you are finished, click the View Results button.
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Free Flashcards for Efficient Revision
Free Flashcards on Alternating Current Generators provide concise definitions, formulas, and important concepts such as the calculation of induced emf in a rotating coil, the relationship between current, voltage, and frequency, and how an AC generator works in real-world power plants. Flashcards are an excellent revision tool to quickly recall key information and prepare for the MDCAT exam.
The working principle of an alternating current generator is based on:
Faraday's law of induction
The induced emf in an AC generator is maximum when the coil is:
Parallel to the magnetic field
The number of times the current changes direction per second is known as:
Frequency
The unit of frequency is:
Hertz
In an AC generator, the coil rotates in a:
Uniform magnetic field
The induced emf in an AC generator is directly proportional to:
Speed of rotation
The direction of current in an AC generator alternates because:
The coil rotates
The maximum value of the induced emf occurs when the coil is:
Perpendicular to the magnetic field
The frequency of an AC generator is dependent on:
Number of turns in the coil
The efficiency of an AC generator depends on:
The quality of the magnetic field
An AC generator produces:
Alternating current
The process of generating AC in a generator is called:
Electromagnetic induction
The slip rings in an AC generator are used to:
Maintain constant current
The maximum induced emf is achieved when the coil's angular velocity is:
Zero
The power generated by an AC generator is related to:
The voltage and current
The phase difference between the current and emf in an ideal AC generator is:
0°
The efficiency of an AC generator is given by:
Output power/Input power
The induced emf in an AC generator alternates because:
The coil rotates
The induced emf in a generator can be increased by:
Increasing the number of turns in the coil
The potential difference across the load of an AC generator is:
Alternating
The primary use of AC generators is in:
Power stations
The rotational motion of the coil in an AC generator is usually produced by:
A prime mover
The AC generator works on the principle of:
Electromagnetic induction
The induced emf in an AC generator is given by:
E = Blv
In a typical AC generator, the coil rotates in a:
Sinusoidal manner
The maximum induced emf in an AC generator occurs at:
90° rotation
The induced current in an AC generator is:
Alternating
The voltage produced by an AC generator is called:
AC voltage
The energy produced by an AC generator is transferred to:
The external circuit
The induced emf in an AC generator is a function of:
The number of coils and the area of the loop
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