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Test: Magnetostatic Properties - Electrical Engineering (EE) MCQ


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10 Questions MCQ Test Electromagnetic Fields Theory (EMFT) - Test: Magnetostatic Properties

Test: Magnetostatic Properties for Electrical Engineering (EE) 2024 is part of Electromagnetic Fields Theory (EMFT) preparation. The Test: Magnetostatic Properties questions and answers have been prepared according to the Electrical Engineering (EE) exam syllabus.The Test: Magnetostatic Properties MCQs are made for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Magnetostatic Properties below.
Solutions of Test: Magnetostatic Properties questions in English are available as part of our Electromagnetic Fields Theory (EMFT) for Electrical Engineering (EE) & Test: Magnetostatic Properties solutions in Hindi for Electromagnetic Fields Theory (EMFT) course. Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free. Attempt Test: Magnetostatic Properties | 10 questions in 10 minutes | Mock test for Electrical Engineering (EE) preparation | Free important questions MCQ to study Electromagnetic Fields Theory (EMFT) for Electrical Engineering (EE) Exam | Download free PDF with solutions
Test: Magnetostatic Properties - Question 1

The magnetostatics highly relies on which property?

Detailed Solution for Test: Magnetostatic Properties - Question 1

Answer: c
Explanation: The magnetostatics highly relies on the inductance of the magnetic materials, which decides its behavior in the influence of magnetic field.

Test: Magnetostatic Properties - Question 2

The inductance is the measure of

Detailed Solution for Test: Magnetostatic Properties - Question 2

Answer: b
Explanation: The inductance is a property of an electric conductor/coil which measures the amount of emf generated by passing current through the coil.

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Test: Magnetostatic Properties - Question 3

Find the total flux in a coil of magnetic flux density 12 units and area 7 units.

Detailed Solution for Test: Magnetostatic Properties - Question 3

Answer: a
Explanation: The total flux in a coil is defined by φ = BA, where B = 12 and A = 0.07. On substituting these values, we get φ = 12 x 0.07 = 0.84 units.

Test: Magnetostatic Properties - Question 4

Find the energy of a coil of inductance 18mH and current passing through it 1.25A.(in 10-3order) 

Detailed Solution for Test: Magnetostatic Properties - Question 4

Answer: a
Explanation: The magnetic energy possessed by a coil is given by E = 0.5 x LI2. Put L = 18 x 10-3 and I = 1.25, thus we get E = 0.5 x 18 x 10-3 x 1.252 = 14.06 x 10-3 units.

Test: Magnetostatic Properties - Question 5

Using Maxwell equation which of the following cannot be calculated directly?

Detailed Solution for Test: Magnetostatic Properties - Question 5

Answer: c
Explanation: The Maxwell equations can be used to compute E,H,D,B and J directly. It is not possible to find the magnetic vector potential A directly.

Test: Magnetostatic Properties - Question 6

Which of the following relation will hold good?

Detailed Solution for Test: Magnetostatic Properties - Question 6

Answer: d
Explanation: The magnetic flux density is the product the permeability and the magnetic field intensity. This statement is always true for any material (permeability).

Test: Magnetostatic Properties - Question 7

The permeability and permittivity of air or free space is unity. State true/false. 

Detailed Solution for Test: Magnetostatic Properties - Question 7

Answer: b
Explanation: The permeability and permittivity of free space or air is always unity. This implies that the air is always ready to store electric or magnetic charges subjected to it.

Test: Magnetostatic Properties - Question 8

Choose the best relation. 

Detailed Solution for Test: Magnetostatic Properties - Question 8

Answer: c
Explanation: For any magnetic field, the magnetic field intensity will be the negative gradient of the potential of the field. This is given by H = -Grad(V).

Test: Magnetostatic Properties - Question 9

Find the magnetic field when the magnetic vector potential is a unit vector.

Detailed Solution for Test: Magnetostatic Properties - Question 9

Answer: c
Explanation: We know that H = -Grad(V), where is a unit vector. The gradient of a constant/unit vector will be zero. Thus the magnetic field intensity will be zero.

Test: Magnetostatic Properties - Question 10

Find the force experienced by an electromagnetic wave in a conductor?

Detailed Solution for Test: Magnetostatic Properties - Question 10

Answer: d
Explanation: The electromagnetic wave experiences Lorentz force which is the combination of the electrostatic force and magneto static force. It is given by F = QE + Q(V X B).

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