Time Left - 08:00 mins
SSC JE Magnetic Circuits Quiz 86
Attempt now to get your rank among 398 students!
Question 1
A conductor of length 100 cm moves right angles to a magnetic field of flux density of 2 wb/sq.m. with the velocity of 25 m/second. The induced emf in the conductor will be
Question 2
A coil has an inductance of 5H and resistance 20Ω. An emf of 100 V is applied to it. What is the energy stored in the magnetic field, when the current has reached its final value
Question 3
What is the SI unit for magnetic reluctance?
Question 4
If you cut a bar magnet into half, the pole strength of each piece will
Question 5
What is the value of magnetic (permeability) constant?
Question 6
What happens when the south pole of a bar magnet is brought close to the north pole of a horse shoe magnet?
Question 7
In magnetic coupling among coils, value of Coupling Coefficient 'k' as 1 shows:
Question 8
What value of ‘K’, circuit is under the magnetic resonance? (K = co-efficient of coupling)
Question 9
Consider the following statements:
1) Mutual inductance describes the voltage induced at the ends of a coils due to the magnetic field generated by a second coil.
2) The dot convention allows a sign to be assigned to the voltage induced due to mutual inductance term.
3) The coupling coefficient is given by
Which of the above statements are correct?
1) Mutual inductance describes the voltage induced at the ends of a coils due to the magnetic field generated by a second coil.
2) The dot convention allows a sign to be assigned to the voltage induced due to mutual inductance term.
3) The coupling coefficient is given by
Which of the above statements are correct?
Question 10
A magnetic ring has a mean circumference of 20 cm and a cross sectional area of 100 cm2 and has 800 number of turns of wire. When the exciting current is 5A, the flux is 2ϖ mWb. The relative permeability of iron is.
- 398 attempts
- 5 upvotes
- 7 comments
Tags :
AE & JE ExamsJun 24AE & JE Exams
