Magnetic Circuit Mcqs Start Creating PDF
Magnetic Circuit Mcqs, this topic has 28 mcqs, It takes five to ten minutes to complete this free magnetic circuit mcqs test. You will see 4 or 5 option of each question. You must choose / think only one option and then press on answer key for check right answer. Practice "magnetic circuit mcqs" MCQs and share with your friends, brothers, sisters.
magnetic circuit mcqs (Total Quiz: 28)
MCQ: The relative permeability of a ferromagnetic material is_____________?
- less than one
- more than one
- more than 10
- more than 100 or 1000
MCQ: Permeability in a magnetic circuit corresponds to________ in an electric circuit
MCQ: Relative permeability of vacuum is__________?
- 1 H/m
- 4n x 10-‘ H/m
MCQ: Energy stored by a coil is doubled when its current is increased by percent___________?
MCQ: When both the inductance and resistance of a coil are doubled the value of________________?
- time constant remains unchanged
- initial rate of rise of current is doubled
- final steady current is doubled
- time constant is halved
MCQ: Conductivity is analogous to____________?
MCQ: Those materials are well suited for making permanent magnets which have ________ retentivity and _________ coercivity
- low, high
- high, high
- high, low
- low, low
MCQ: Hard steel is suitable for making permanent magnets because_____________?
- it has good residual magnetism
- its hysteresis loop has large area
- its mechanical strength is high
- its mechanical strength is low
MCQ: Conductance is analogous to_____________?
MCQ: The unit of retentivity is____________?
- weber/sq. m
- ampere turn/meter
- ampere turn
- magnetic circuit
- thermal magnetic
- magnetic equivalent circuit
- magnetic coupling transformer