1. Two charged spheres are 1.25 m apart. One sphere has a charge of 2.5 x 104 C and the other sphere has a charge of 3.2 x 10¹5 C. Assuming k = 9.00 x 10°³ N.m²/C², the electric force between the two spheres is: a) 4.60 x 10¹ N b) 4.44 x 10-20 N c) 2.25 x 10¹⁹ N d) e) 4.44 x 10-18 N 2.88 x 104 N

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1. Two charged spheres are 1.25 m apart. One sphere has a charge of 2.5 x 104 C and the other sphere has a
charge of 3.2 x 10¹5 C. Assuming k = 9.00 x 10° N.m²/C², the electric force between the two spheres is:
a)
b)
c)
2.
3.
a) N
b) kg/C-s
c) N/C
a)
b)
4.60 x 10¹ N
4.44 x 10-20 N
2.25 x 10¹⁹ N
4.
Electric field strength is measured in:
d) 4.44 x 10-¹8 N
e) 2.88 x 104 N
d) kg-m/s²
e) kg-m²/s²
Which of the following diagrams represent the field of force around a negative charge?
c)
d)
At which point (or points) is the electric field zero N/C for the two point charges shown on the x-axis?
+4q
a) The electric field is never zero in the vicinity of these charges.
b) The electric field is zero somewhere on the x axis to the left of the +4q charge.
c) The electric field is zero somewhere on the x axis to the right of the -2q charge.
d)
The electric field is zero somewhere on the x axis between the two charges, but this point is
nearer to the -2q charge.
e)
The electric field is zero at two points along the x axis; one such point is to the right of the -2q
charge and the other is to the left of the +4q charge.
Transcribed Image Text:1. Two charged spheres are 1.25 m apart. One sphere has a charge of 2.5 x 104 C and the other sphere has a charge of 3.2 x 10¹5 C. Assuming k = 9.00 x 10° N.m²/C², the electric force between the two spheres is: a) b) c) 2. 3. a) N b) kg/C-s c) N/C a) b) 4.60 x 10¹ N 4.44 x 10-20 N 2.25 x 10¹⁹ N 4. Electric field strength is measured in: d) 4.44 x 10-¹8 N e) 2.88 x 104 N d) kg-m/s² e) kg-m²/s² Which of the following diagrams represent the field of force around a negative charge? c) d) At which point (or points) is the electric field zero N/C for the two point charges shown on the x-axis? +4q a) The electric field is never zero in the vicinity of these charges. b) The electric field is zero somewhere on the x axis to the left of the +4q charge. c) The electric field is zero somewhere on the x axis to the right of the -2q charge. d) The electric field is zero somewhere on the x axis between the two charges, but this point is nearer to the -2q charge. e) The electric field is zero at two points along the x axis; one such point is to the right of the -2q charge and the other is to the left of the +4q charge.
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