Q1 The factors on which one magnetic field strength produced by current carrying solenoids depends are
- (a) Magnitude of current
- (b) Number of turns
- (c) Nature of core material
- (d) All of the above
- (d) All of the above
Q2 The magnetic field produced due to a solenoid is same as that produced by a....
- a) Bar magnet
- b) Electromagnet
- c) semi- circular coil containing current
- d) None of these
- a) Bar magnet
Q3 A magnetic dipole is placed in a uniform magnetic fields, "B". At what angle magnetic dipole to be placed in magnetic field so that the potential energy is minimum
- a) `90^{0}`
- b) `30^{0}`
- c) `45^{0}`
- d) `0^{0}`
- d) `0^{0}`
Q4 The small angle between magnetic axis and geographic axis at a place is called
- (a) Magnetic inclination
- (b) Magnetic dip
- (c) Magnetic declination
- (d) None of the above
- (c) Magnetic declination
Q5 Horizontal component of earth at a place is 3.2 x `10^{-5}`T, and angle of dip is `60^{0}` The resultant intensity of earth’s field at the place is
- a) 3.2 x `10^{-5}`T
- b) 1.6 x `10^{-5}`T
- c) 6.4 x `10^{-5}`T
- d) 12.8 x `10^{-5}`T
- c) 6.4 x `10^{-5}`T
Q6 Isogonic lines on magnetic map represent lines of
- (a) Zero declination
- (b) Equal declination
- (c) Equal dip
- (d) Equal horizontal field
- (b) Equal declination
Q7 At magnetic poles which out of following is zero
- (a) Horizontal component (H) of earth's magnetic field
- (b) Vertical component of earth's magnetic field
- (c) Total strength of earth’s magnetic field(R)
- (d) Magnetic declination
- (a) Horizontal component (H) of earth's magnetic field
Q8 At a certain place, the horizontal component of earth’s magnetic field is √3 times the vertical component. The angle of dip at that place is
- a) `90^{0}`
- b) `30^{0}`
- c) `45^{0}`
- d) `0^{0}`
- b) `30^{0}`
Q9. Magnetic dip at a place can be measured by ‘Dip circle’.
- a) True
- b) False
- a) True
Q10 At a particular place, horizontal and vertical components of earth’s magnetic field are equal. The angle of dip at that place is
- a) `90^{0}`
- b) `30^{0}`
- c) `45^{0}`
- d) `0^{0}`
- c) `45^{0}`
No comments:
Post a Comment