EXAMINATION - 2025-26
SUBJECT: PHYSICS
TIME: 2hrs CLASS – XII MM: 50
Section - A (10 marks)
A. Choose the correct answer:- 10x1=10
Q.1 A moving electron enters a uniform magnetic field perpendicularly. Inside the
magnetic field, the electron travels along :
(a) a straight line (b) a circle (c) a parabola (d) a hyperbola
Q.2 When a charged particle is projected perpendicular to a uniform magnetic field, it describes a
circular path in which :
(a) its speed remains constant
(b) its velocity remains constant
(c) its momentum remains constant
(d) its kinetic energy increases.
Q.3 . The resistance of an ammeter formed by converting a galvanometer will be :
(a) equal to galvanometer
(b) less than galvanometer
(c) greater than galvanometer
(d) none of the above
Q.4 A moving coil galvanometer can be converted into a voltmeter by connecting:
(a) a low resistance in series with its coil.
(b) low resistance in parallel with its coil.
(c) a high resistance in parallel with its coil.
(d) a high resistance in series with its coil.
Q.5 . The line on the earth's surface joining the points where the field is horizontal is called :
(a) magnetic meridian (b) magnetic axis
(c) magnetic equator (d) isogonic line.
Q. 6 . What is the angle of dip at a place where the horizontal component (BH) and vertical
magnetic field are equal? component (Bv) of earth's
(a) 130° (b) 60° (c) 45° (d) 90°.
SUBJECT: PHYSICS
TIME: 2hrs CLASS – XII MM: 50
Section - A (10 marks)
A. Choose the correct answer:- 10x1=10
Q.1 A moving electron enters a uniform magnetic field perpendicularly. Inside the
magnetic field, the electron travels along :
(a) a straight line (b) a circle (c) a parabola (d) a hyperbola
Q.2 When a charged particle is projected perpendicular to a uniform magnetic field, it describes a
circular path in which :
(a) its speed remains constant
(b) its velocity remains constant
(c) its momentum remains constant
(d) its kinetic energy increases.
Q.3 . The resistance of an ammeter formed by converting a galvanometer will be :
(a) equal to galvanometer
(b) less than galvanometer
(c) greater than galvanometer
(d) none of the above
Q.4 A moving coil galvanometer can be converted into a voltmeter by connecting:
(a) a low resistance in series with its coil.
(b) low resistance in parallel with its coil.
(c) a high resistance in parallel with its coil.
(d) a high resistance in series with its coil.
Q.5 . The line on the earth's surface joining the points where the field is horizontal is called :
(a) magnetic meridian (b) magnetic axis
(c) magnetic equator (d) isogonic line.
Q. 6 . What is the angle of dip at a place where the horizontal component (BH) and vertical
magnetic field are equal? component (Bv) of earth's
(a) 130° (b) 60° (c) 45° (d) 90°.
