The figure shows some equipotentials near a dipole. The dipole consists of two charges +q and –q, separated by 2.0 m. The magnitude of the electric field at point 1, midway between the charges, is 30 N/C.
The figure shows some equipotentials near a dipole. The dipole consists of two charges +q and –q, separated by 2.0 m. The magnitude of the electric field at point 1, midway between the charges, is 30 N/C.
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Transcribed Image Text:The figure shows some equipotentials near a dipole. The dipole consists of two charges +q and -q, separated by
2.0 m. The magnitude of the electric field at point 1, midway between the charges, is 30 N/C.
OV
10 V.
-10 V
20 V
-20 V
30 V
-30 V
40 V
40 V
1.0 m
(a) Find the magnitude of the charges, q.
(b) An electron is launched from point 3 at 4.6 × 10° m/s and later reaches point 4. How fast is it moving at point 4?
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