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Test: Magnetomotive Force & Magnetic Field Strength - Electrical Engineering (EE) MCQ


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10 Questions MCQ Test - Test: Magnetomotive Force & Magnetic Field Strength

Test: Magnetomotive Force & Magnetic Field Strength for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Test: Magnetomotive Force & Magnetic Field Strength questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Magnetomotive Force & Magnetic Field Strength MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Magnetomotive Force & Magnetic Field Strength below.
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Test: Magnetomotive Force & Magnetic Field Strength - Question 1

 What is a permeable substance?

Detailed Solution for Test: Magnetomotive Force & Magnetic Field Strength - Question 1

A permeable substance is one through which the magnetic lines of force can pass through easily.

Test: Magnetomotive Force & Magnetic Field Strength - Question 2

Materials having good retentivity are?

Detailed Solution for Test: Magnetomotive Force & Magnetic Field Strength - Question 2

Materials having low retentivity are temporary magnets because they can retain the magnetic strength for only some time.

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Test: Magnetomotive Force & Magnetic Field Strength - Question 3

 Magnetic field exists along which of the following?

Detailed Solution for Test: Magnetomotive Force & Magnetic Field Strength - Question 3

Moving charges have a magnetic field associated with them because they have magnetic flux lines associated with it.

Test: Magnetomotive Force & Magnetic Field Strength - Question 4

 The direction of magnetic lines of force are?

Detailed Solution for Test: Magnetomotive Force & Magnetic Field Strength - Question 4

Magnetic lines of force originate at the north pole and terminate at the south pole hence they are from the north pole to the south pole.

Test: Magnetomotive Force & Magnetic Field Strength - Question 5

Magnetic force lines ___________ at the north pole.

Detailed Solution for Test: Magnetomotive Force & Magnetic Field Strength - Question 5

Magnetic force lines emerge at the north pole. Force lines seem to emerge at the north pole because they originate at the north pole.

Test: Magnetomotive Force & Magnetic Field Strength - Question 6

When a bar magnet is broken into two pieces, which of the following are true?

Detailed Solution for Test: Magnetomotive Force & Magnetic Field Strength - Question 6

When a bar magnet is broken into two pieces, it forms two differ bar magnets. This happens because the broken pieces of the magnet forms a separate north and south pole for itself as monopoles do not exist.

Test: Magnetomotive Force & Magnetic Field Strength - Question 7

When an electric current flows into the page, what is the direction of the magnetic field?

Detailed Solution for Test: Magnetomotive Force & Magnetic Field Strength - Question 7

when the current flows into the page, the magnetic field is clockwise because of the right hand thumb rule, we orient our thumb into the page and our fingers curl in the clockwise direction.

Test: Magnetomotive Force & Magnetic Field Strength - Question 8

When an electric current flows out of the page, what is the direction of the magnetic field?

Detailed Solution for Test: Magnetomotive Force & Magnetic Field Strength - Question 8

 when the current flows out of the page, the magnetic field is anti-clockwise because of the right hand thumb rule, we orient our thumb out of the page and our fingers curl in the anti-clockwise direction.

Test: Magnetomotive Force & Magnetic Field Strength - Question 9

Which of the following is used to determine the direction of magnetic field in a current carrying conductor?

Detailed Solution for Test: Magnetomotive Force & Magnetic Field Strength - Question 9

The right hand thumb rule determines the direction of magnetic field in a current carrying conductor. The rule states that when we align our right thumb in the direction of the current and curl our fingers around it, the direction of our fingers is the direction of the magnetic field.

Test: Magnetomotive Force & Magnetic Field Strength - Question 10

The relation between the direction of current and the direction of magnetic field is?

Detailed Solution for Test: Magnetomotive Force & Magnetic Field Strength - Question 10

When a conductor carries a certain value of current, the force developed in the conductor, the current in the conductor and the magnetic field in the conductor are mutually perpendicular to each other.

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