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Three types of charged particles, lets call them A, B, and C, are accelerated and then...

Three types of charged particles, lets call them A, B, and C, are accelerated and then pass through a velocity selector so that we know they have the same velocity, moving to the right. They then enter a region where the magnetic field is pointing into the paper. Particles A and B are deflected upwards, as shown, while particle C is deflected downwards. The paths of the charges in the field are arcs of circles with the radii being 0.36 m for charge A, 0.69 m for charge B, and 0.28 m for charge C.

(a) What is the sign of the charge on particle A?

PositiveNegative     No Charge


(b) What is the sign of the charge on particle C?

PositiveNegative     No Charge



(c) Suppose that both the mass and charge of particle C were doubled. What would happen to the radius of the arc in which it travels?

Radius quadruplesRadius doubles     Radius is unchangedRadius is halvedRadius is quarteredOther

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