Question

WORKSHEET 1.1: ELECTRIC FORCES Complete the table below. Use Q1 = 1.2 x 10^-4 C ; q2 = 2.4 x 10^-4 C; d = 0.45 m. Charge 1 Charge 2 Distance Electric Force Q1 q2 d Fe 2Q1 3q2 d 2Fe 2Q1 1/2 q2 d Fe 2Q1 q2 2d 4Fe Q1 3q2 2d 6Fe 2Q1 2q2 2d 8Fe 2Q1 q2 1/2d Fe 1/2Q1 q2 1/2d 1/4Fe 2Q1 1/2 q2 2d 2Fe 1/2Q1 1/2 q2 1/2d 1/4Fe Problem Solving: Compute for the following unknowns, provide the necessary solutions and diagram. Round off your answer to the nearest 4-decimal places. Box your final answers. Two small spheres spaced 20cm apart have equal charge. How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57 x 10^-21 N? Note: -e = -1.602 x 10^-19 C Two-point charges (+) equal with one another, q1 = q2 = 2.0 µC are located at x = 0, y = 0.30m and x = 0, y = -0.30m, respectively. What is the magnitude of the total electric force that q1 and q2 exert on a third charge Q = 4.0µC at x = 0.4m, y = 0? A +100µC charge is placed at the origin. A +200µC charge is placed 2m above the origin and a -300 µC charge is placed 3m to the right of the origin. What is the magnitude and direction of the net force acting on the charge placed at the origin? Two-point charges are separated by 25.0 cm from the figure below. Find the net electric field these charges produce at (a) point A (b) point B (c) What would be the magnitude and direction of the electric force this combination of charges would produce on a proton at A? Note: +e = +1.602 x 10^-19 C A +50nC point charge is placed at the origin and a -50nC point charge is placed at position (2m, 0) relative to the origin. What is the electric field midway between the two-point charges and 2m to the right of -50nC charge? Find the total Electric Field on Point (P) where the magnitude of Q1, Q2, Q3 is equal to 80nC.

          WORKSHEET 1.1: ELECTRIC FORCES

Complete the table below. Use Q1 = 1.2 x 10^-4 C ; q2 = 2.4 x 10^-4 C; d = 0.45 m.

Charge 1    Charge 2    Distance    Electric Force
Q1          q2          d           Fe
2Q1         3q2         d           2Fe
2Q1         1/2 q2      d           Fe
2Q1         q2          2d          4Fe
Q1          3q2         2d          6Fe
2Q1         2q2         2d          8Fe
2Q1         q2          1/2d        Fe
1/2Q1       q2          1/2d        1/4Fe
2Q1         1/2 q2      2d          2Fe
1/2Q1       1/2 q2      1/2d        1/4Fe

Problem Solving: Compute for the following unknowns, provide the necessary solutions and diagram. Round off your answer to the nearest 4-decimal places. Box your final answers.

Two small spheres spaced 20cm apart have equal charge. How many excess electrons must be present on each sphere if the magnitude of the force of repulsion between them is 4.57 x 10^-21 N? Note: -e = -1.602 x 10^-19 C

Two-point charges (+) equal with one another, q1 = q2 = 2.0 µC are located at x = 0, y = 0.30m and x = 0, y = -0.30m, respectively. What is the magnitude of the total electric force that q1 and q2 exert on a third charge Q = 4.0µC at x = 0.4m, y = 0?

A +100µC charge is placed at the origin. A +200µC charge is placed 2m above the origin and a -300 µC charge is placed 3m to the right of the origin. What is the magnitude and direction of the net force acting on the charge placed at the origin?

Two-point charges are separated by 25.0 cm from the figure below. Find the net electric field these charges produce at (a) point A (b) point B (c) What would be the magnitude and direction of the electric force this combination of charges would produce on a proton at A? Note: +e = +1.602 x 10^-19 C

A +50nC point charge is placed at the origin and a -50nC point charge is placed at position (2m, 0) relative to the origin. What is the electric field midway between the two-point charges and 2m to the right of -50nC charge?

Find the total Electric Field on Point (P) where the magnitude of Q1, Q2, Q3 is equal to 80nC.

Added by Ruben F.

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