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klio [65]
3 years ago
12

A point charge is placed 3 m from a 4 uC charge. What is the strength of the electric field on the point charge at this

Physics
2 answers:
brilliants [131]3 years ago
4 0

Answer:

4,000N/C

Explanation:

the information we have is:

distance:  r=3m

charge: q= 4\mu C

since the prefix \mu is equal to 1x10^{-6}

the charge is: q=4x10^{-6}C

------------------

To calculate the strength of the electric field we use the following formula:

E=\frac{kq}{r^2}

where q is the charge, r is the distance and k is Coulomb's constant

k=9x10^9Nm^2/C^2

substituting all the known values into the formula:

E=\frac{(9x10^9Nm^2/C^2)(4x10^{-6}C)}{(3m)^2} \\E=\frac{36,000Nm^2/C}{9m^2} \\E=4,00N/C

The strength of the electric field on the point charge at the distance of 3m is 4,000 N/C.

mars1129 [50]3 years ago
3 0

Answer:4000v/m

Explanation:

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