The charged particle enters the uniform magnetic field in such a way that its initial velocity is not perpendicular to the field the orbit will be__________________?
A. a circle
B. a spiral
C. an ellipse
D. helix…
A. a circle
B. a spiral
C. an ellipse
D. helix…
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. τ = NIAB cosφ
B. τ = NIAB sinφ
C. τ = NIAB tanφ
D. τ = NIAB…
A. charge in motion
B. charge at rest
C. both
D. none…
A. R=qB/mV
B. R=mV/qB
C. R=qmV/B
D. R=qmB/V…
A. F=1/B
B. F=1/Bsinθ
C. F/0
D. F=1/Bcosθ…
A. be rotating
B. come to rest in N-S direction
C. vibrating like galvanometer needle
D. comes to rest after rotation…
A. independent mass m
B. directly proportional to m
C. directly proportional to q
D. directly proportional to B…
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. thickness of the film only
B. nature of the film only
C. angle of indidence only
D. all thickness nature and angle of incidence…