Multiple Choice
One very small uniformly charged plastic ball is located directly above another such charge in a test tube as shown in the figure.The balls are in equilibrium a distance d apart.If the charge on each ball is doubled,the distance between the balls in the test tube would become 
A)
d.
B) 2d.
C) 4d.
D) 8d.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q3: In the figure,a small spherical insulator of
Q4: In the figure,all the charges are point
Q5: A +7.00 μC point charge and -9.00
Q6: The point charge at the bottom of
Q8: Three point charges are placed on the
Q9: A metal sphere of radius 10 cm
Q10: Charge Q<sub>1</sub> = 6.0 nC is at
Q12: Two identical small charged spheres are a
Q12: A small sphere with a mass of
Q20: When two point charges are 2.0 cm