or answers the question. Both MULTIPLE CHOICE. Choose the one alternative that b
ID: 1998920 • Letter: O
Question
or answers the question. Both MULTIPLE CHOICE. Choose the one alternative that best completes the statement circle the correct answer and write the letter in the blank space to the right of the question. (2 points each) A negative charge, if free, tries to move A) away from infinity. B) toward infinity. C) from low potential to high potential. D) in the direction of the electric field. E) from high potential to low potential. FIGURE 19-10 2) equal point charges are placed at three of the corners of a square as shown in Figure 19-10. Which of sided vacant corner of the of the arrows show represents the direction of the net electric field at the square? B) B D) D E) none of the above 3) Two point charges q1 and 12, are separated by a certain distance R. If the magnitudes of both of the charges are doubled and their separation is also doubled, then what happens to the electrical force between these two charges? A) It is doubled. B) It remains the same reduced by a factor ofN2. D) It is quadrupled. lt changes by a factor of 3.Explanation / Answer
(1) From low Potential to High potential, i.e against the direction of Electric Field.
(2) B gives true direction of electric field at vacant corner.
(3) F2/F1 = 2Qa *2Qb * r2/Qa*Qb*(2r)2 = 1 .Therefore Force remains same.
(7) Plane mirror forms Virtual and Upright Image.
(8) Sound wave is not an EM wave.
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