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Given are four arrangements of three fixed electric charges. In each arrangement, a point labele...
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Given are four arrangements of three fixed electric charges. In each arrangement, a point labeled \( P \) is also identified. A test charge \( +q \) is placed at \( P \). All of the charges are of the same magnitude \( Q \), but they can be either positive or negative as indicated. The charges and point \( P \) all lie on a straight line. The distances between adjacent items, either between two charges or between a charge and point \( P \), are all the same.\( \begin{array}{rr}\text { I. } \oplus \oplus \oplus \stackrel{P}{P} & \text { II. } \oplus \oplus \stackrel{P}{\bullet} \ominus \\ \text { III. } \oplus \oplus \ominus \stackrel{P}{ } & \text { IV. } \oplus \oplus \oplus \stackrel{P}{P}\end{array} \)Correct order of choices in a decreasing order of magnitude of force on \( P \) is(1) II \( \) I \( \) III \( \) IV(2) I \( \) II \( \) III \( \) IV(3) II \( \) I \( \) IV \( \) III(4) III \( \) IV \( \) I \( \) II