Basic Electrical Engineering Ohms Law Magnetic Circuit Online Exam Quiz
Basic Electrical Engineering Ohms Law Magnetic Circuit GK Quiz. Question and Answers related to Basic Electrical Engineering Ohms Law Magnetic Circuit. MCQ (Multiple Choice Questions with answers about Basic Electrical Engineering Ohms Law Magnetic Circuit
A ring having a cross-sectional area of 500 mm2, a circumference of 400 mm and ?=800microWb has a coil of 200 turns wound around it. Relative permeability of ring is 380. Calculate the reluctance.
Options
A : 1.68 * 10-4A/Wb
B : 1.68 * 104 A/Wb
C : 1.68 * 106 A/Wb
D : 1.68 * 10-6A/Wb
A ring having a cross-sectional area of 500 mm2, a circumference of 400 mm and ?=800microWb has a coil of 200 turns wound around it. Calculate the flux density of the ring.
Options
A : 1.6T
B : 2.6T
C : 3.6T
D : 4.6T
Calculate the MMF when the magnetic flux is 5Wb and the reluctance is 3A/Wb.
Options
A : 10At
B : 10N
C : 15N
D : 15At
A ring having a cross-sectional area of 500 mm2, a circumference of 400 mm and ?=800microWb has a coil of 200 turns wound around it. Relative permeability of ring is 380. Calculate the magnetomotive force.
Options
A : 1442At
B : 1342At
C : 1432At
D : 1344At
A ring having a cross-sectional area of 500 mm2, a circumference of 400 mm and ?=800microWb has a coil of 200 turns wound around it. Relative permeability of ring is 380. Calculate the magnetising current.
Options
A : 6.7A
B : 7.7A
C : 7.6
D : 6.1A
Ohm’s law for magnetic circuits is _________
Options
A : F=?S
B : F=?/S
C : F=?2S
D : F=?/S2
The equivalent of the current I in magnetic ohm’s law is?
Options
A : Flux
B : Reluctance
C : MMF
D : Resistance
What happens to the MMF when the magnetic flux decreases?
Options
A : Increases
B : Decreases
C : Remains constant
D : Becomes zero
What is MMF?
Options
A : Magnetic Machine Force
B : Magnetomotive Force
C : Magnetic Motion Force
D : Magnetomotion Force
Can we apply Kirchhoff’s law to magnetic circuits?
Options
A : Yes
B : No
C : Depends on the circuit
D : Insufficient information provided
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