10 class

What is the total electric potential at point K due to the charges 2q and -q? (k:Coulombs
constant

• 0

• kq:d

• 2kq:d

• -kq:d

• -2kq:d

• 1

• 2

• 3

• 4

• 5

If the electric potential of charge q at point K is 6 V , what is the potential of charge -3q at point K , in Volts ?

• -42

• -36

• -18

• -12

• -67

Three charges are fixed as shown in the figure.The force applied on charge K by charge 9q is F. What is the resultant force applied on the charge K , in the terms of F ?

• -1

• 0

• 1

• 3

• 5

• 1

• 2

• 5