Magnetic Force on Moving Charges

Froggy Jumps

Parties jouées 1 %Précision 80 Temps moyen 02:23

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Quiz on magnetic force

Créé par

ANA JANICE ULANG

Philippines

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Magnetic Force on Moving Charges


Froggy Jumps Magnetic Force on Moving ChargesVersion en ligne Quiz on magnetic force par ANA JANICE ULANG 1 A positive charge moves perpendicular to a uniform magnetic field. In which direction does the force act on the charge? a Along the magnetic field lines b Along the velocity direction c Perpendicular to both velocity and field, via the right-hand rule 2 If v is parallel to B, what is the magnetic force on the moving charge? a Zero, because v × B = 0 b Maximum force c Direction opposite to velocity 3 A charge q moves with velocity v in a uniform B field. Which equation gives the magnetic force magnitude? a F = q v / B b F = q v B sinθ c F = q B / v 4 Which rule helps determine the direction of the magnetic force on a positive charge? a Left-hand rule b Right-hand rule for v × B c Fleming’s left-hand rule 5 A particle with charge q moves in a plane perpendicular to B. If v and B are perpendicular, what is the angle θ between v and B? a 0 degrees b 45 degrees c 90 degrees 6 For a negative charge, how does the direction of the magnetic force compare to that given by the right-hand rule? a Opposite to the direction predicted by the right-hand rule b Perpendicular to it c Same as the right-hand rule 7 What happens to the magnetic force if the charge’s speed doubles but B stays the same and θ remains 90°? a The force halves b The force doubles c The force stays the same 8 If a charge moves parallel to B, what is the resulting trajectory under magnetic influence alone? a Helical path b No magnetic force, straight-line motion c Circular path 9 Which quantity remains constant for a charged particle in a uniform magnetic field with no electric field? a Kinetic energy remains constant b Magnetic force magnitude is constant if v is constant and θ fixed c Charge remains constant but force changes 10 The Lorentz force on a moving charge is given by F = q(v × B). What is the direction of F if v is to the east and B is to the north? (Positive charge) a North (along B) b Upward (perpendicular to both, using right-hand rule) c East (along v)

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Magnetic Force on Moving Charges

Froggy Jumps

À propos de cette activité

Créé par

Téléchargez la version pour jouer sur papier

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Magnetic Force on Moving ChargesVersion en ligne

par ANA JANICE ULANG

A positive charge moves perpendicular to a uniform magnetic field. In which direction does the force act on the charge?

If v is parallel to B, what is the magnetic force on the moving charge?

A charge q moves with velocity v in a uniform B field. Which equation gives the magnetic force magnitude?

Which rule helps determine the direction of the magnetic force on a positive charge?

A particle with charge q moves in a plane perpendicular to B. If v and B are perpendicular, what is the angle θ between v and B?

For a negative charge, how does the direction of the magnetic force compare to that given by the right-hand rule?

What happens to the magnetic force if the charge’s speed doubles but B stays the same and θ remains 90°?

If a charge moves parallel to B, what is the resulting trajectory under magnetic influence alone?

Which quantity remains constant for a charged particle in a uniform magnetic field with no electric field?

The Lorentz force on a moving charge is given by F = q(v × B). What is the direction of F if v is to the east and B is to the north? (Positive charge)