Physics MCQs

A. A straight line parallel to the field
B. A parabola in a plane perpendicular to the field
C. A circle in a plane perpendicular to the field
D. A straight line along its initial direction

A. Maximum current flows through the galvanometer branch
B. Minimum current flows through the galvanometer branch
C. Potential difference across galvanometer branch is maximum
D. Potential difference across galvanometer branch is zero

A. Independent mass m
B. Directly proportional to m
C. Directly proportional to q
D. Directly proportional to b

A. Be rotating
B. Come to rest in n-s direction
C. Vibrating like galvanometer needle
D. Comes to rest after rotation

A. F=1/b
B. F=1/bsinθ
C. F/0
D. F=1/bcosθ

A. R=qb/mv
B. R=mv/qb
C. R=qmv/b
D. R=qmb/v

A. Charge in motion
B. Charge at rest
C. Both
D. None

A. Τ = niab cosφ
B. Τ = niab sinφ
C. Τ = niab tanφ
D. Τ = niab

A. Magnetic flux = flux density / area
B. Magnetic flux = flux density x area
C. Flux density = magnetic flux area
D. Flux density = magnetic flux x area

A. 1a
B. 10a
C. 100a
D. 1000a