A=29 B=39 C=139 D=12 Will be graded: 1. If a = D cm, b = D+2 cm, Q = D nC, and q = -B nC, you need to calculate the magnitude and direction of the electric field at point P. a. Draw the free body diagram at point of interest? (15 Points) b. Calculate electric field at P due to Q? What is the direction? (15 Points) c. Calculate electric field at P due to q? What is the direction? (15 Points) d. Calculate the magnitude and find the electric field at P? (15 Points) e. If you leave a charge Q at P, what will be the electric force at P? (15 Points) Do for practice and earn (25 points) for completion: 2. Two positive point charges, q1= BUC and q2=D uC are separated in a vacuum by a 2.0m. Find the spot on the line between the charges where the net electric field is zero. 3. a. Draw electric field line for positive and negative charges separately? b. Draw electric field line for dipole charge? c. Draw electric field line for parallel plate capacitor? d. Draw electric field line for spherical shell capacitor with conducting inner circle? e. Explain electric field line behavior as you understand? 4. If a = B cm, b = D cm, Q= -D nC, and q = D/2 nC, what is the magnitude and direction of the electric field at point P? (10 Points) Dr. Hetti PHY 156 5. The figure shows four situations in which four charged particles are evenly spaced to the left and right of a central point. The charge values are indicated. Which one has the greatest magnitude of the net electric field at the central point? What will be the net electric field direction? (10 Points) (A) -0 (C) te 6. Calculate the electric filed on q for the given system below, If Q = D JC , q = D/2 JC, and L = D cm (1 JC =1 x 10% C)