If point + 9 was absent, the electric field at point B would be E, What is the e

Question

If point + 9 was absent, the electric field at point B would be E, What is the electric field between the two point charges, +9 and -9, at point B Which lies at the midpoint between the two charges? 2E[right] 0 2E[left] E/2[left] E/2[right] How much work must be done to carry a - 4.0 c charge from negative A to positive plate B if the if the electric potential difference between the plate is 35V? 8.8 J -140 J -8.8 J 140 J -0.11 J If two parallel plates are separated by a distance of 5.0 cm and the electric potential between the plates is 20.0 V, the magnitude of epsilon would be 10.0 V.m 0.050 m/v 4.0 v/m 400.0 v/m 0.25 m/v

Explanation / Answer

1)Answer d)D

2)Answer d)use a paramagnetic material in the core instead of cobalt or nickel

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