Two identical spheres initially carrying charges of -20 mC and +50 mC make contact for only a few seconds. When they are separated by a distance of 2.50 cm, calculate the force experienced by each sphere. Clearly state if this force is attractive or repulsive. Two lorgo noro

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Chapter1: Units, Trigonometry. And Vectors
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E
F
1.0 cm
100 V
3.3
The drawing below shows four point charges. The value of q is 3.2 µC, a distance d is 840 mm. Calculate
the total potential at the location P. [HINT: Assume that the potential of a point charge is zero at infinity]
Transcribed Image Text:E F 1.0 cm 100 V 3.3 The drawing below shows four point charges. The value of q is 3.2 µC, a distance d is 840 mm. Calculate the total potential at the location P. [HINT: Assume that the potential of a point charge is zero at infinity]
ON 3
3.1
Two identical spheres initially carrying charges of -20 mC and +50 mC make contact for only a few
seconds. When they are separated by a distance of 2.50 cm, calculate the force experienced by each sphere.
Clearly state if this force is attractive or repulsive.
3.2
Two large parallel plates are placed horizontally with respect to each other and are then connected to a
100-V battery. If the distance between the plates is 1 cm, the uniform electric field between the plates is
104 N/C in the upward direction as shown by the vectors in the figure. If the electron is released from rest
at the upper plate, calculate:
i.
kinetic energy of the electron after traveling 1 cm to the lower plate, and
ii.
the time required for it to travel this distance.
Transcribed Image Text:ON 3 3.1 Two identical spheres initially carrying charges of -20 mC and +50 mC make contact for only a few seconds. When they are separated by a distance of 2.50 cm, calculate the force experienced by each sphere. Clearly state if this force is attractive or repulsive. 3.2 Two large parallel plates are placed horizontally with respect to each other and are then connected to a 100-V battery. If the distance between the plates is 1 cm, the uniform electric field between the plates is 104 N/C in the upward direction as shown by the vectors in the figure. If the electron is released from rest at the upper plate, calculate: i. kinetic energy of the electron after traveling 1 cm to the lower plate, and ii. the time required for it to travel this distance.
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