What is the electric field

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Reference no: EM1348770

Q. A source emits sound uniformly in all directions. There are no reflections of the sound. At a distance r1 from the source the sound is 3.9 dB louder than it is at a distance r2 from the source. What is the ratio r1/r2?

Q. Two 10-cm-diameter charged thin rings face each other, 25 cm apart. The left ring is charged to -25 nC and the right ring is charged to +25 nC. a. What is the electric field , both magnitude and direction, at the midpoint between the two rings? b. Calculate the force on a 1.4 nC charge placed at the midpoint?

Reference no: EM1348770

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What is the electric field : A source emits sound uniformly in all directions. There are no reflections of the sound. At the distance r1 from the source the sound is 3.9 dB louder than it is at a distance r2 from the source. What is the ratio r1/r2.

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