A small 12.0 g plastic ball is tied to a very light 25.7 cm string that is attached to the vertical wall of a room. (See the figure ( Figure 1).) A uniform horizontal electric field exists in this room. When the ball has been given an excess charge of -1.20 μC, you observe that it remains suspended, with the string making an angle of 17.4° with the wall. Figure 1 of 1 ▾ Part A Find the magnitude of the electric field in the room. Express your answer in newtons per coulomb. ID ΑΣΦ E= Submit Part B Request Answer Find the direction of the electric field in the room. to the left g ? N/C

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.