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In the region shown above there is an electric field due to charged objects not

ID: 2288413 • Letter: I

Question

In the region shown above there is an electric field due to charged objects not shown in the diagram. A tiny glass ball with a charge of 6e-09 coulomb placed at location A experiences a force of N, as shown in the diagram. Which arrow (a-j) best indicates the direction of the electric field at location A? j zero magnitude What is the electric field at location A? Vector E = N/C What is the magnitude of this electric field? |Vector E| = N/C Now the glass ball is moved very far away. A tiny plastic ball, with charge -7e-09 coulombs is placed at location A. Which arrow best indicates the direction of the electric force on the negatively charged plastic ball? What is the force on the negative plastic ball? Vector F = N You discover that the source of the electric field at location A is a negatively charged particle. Which of the blue X's below best indicates the location of the negatively charged particle that is the source of the field?

Explanation / Answer

force F = qE = 7x10-9x 11313.7 = 7.9 x 10-5N

the position of the charge would be 4