You decide to make an electric field line diagram in two dimensions, with 40 lin

Question

You decide to make an electric field line diagram in two dimensions, with 40 lines per coulomb of charge.

Part A

How many lines should you draw surrounding a particle that carries +1.5 C of charge?

N=

lines

Part B

Should the lines enter or leave that particle?

Should the lines enter or leave that particle?

The lines leave that particle because it is positively charged.

Part C

How many lines should you draw surrounding a particle that carries -0.375 C of charge.

N=

lines

Part D

Should the lines enter or leave that particle?

Should the lines enter or leave that particle?

The lines enter that particle because it is negatively charged.

Part E

Could you represent a particle that carries +0.8 Cin this diagram?

Could you represent a particle that carries +0.8  in this diagram?

N=

lines

Part B

Should the lines enter or leave that particle?

Should the lines enter or leave that particle?

The lines enter that particle because it has a nonzero mass. The lines enter that particle because it is positively charged. The lines leave that particle because it has a nonzero mass.

The lines leave that particle because it is positively charged.

Part C

How many lines should you draw surrounding a particle that carries -0.375 C of charge.

N=

lines

Explanation / Answer

Lines leave from the particle if it is positively charged

and it enters when it is negatively charged

Part A)

If charge is 1 C, then number of lines=40

If charge is 1.5 C, then number of lines=(40/1)*1.5=60

Part B)

since charge is +ve, lines will leave from the charge

Part C)

If charge is 1 C, then lines =40

If charge is 0.375 C, then lines=(40/1)*0.375

Part D)

since charge is -ve, lines will enetr in teh charge

Part E)

Yes, any charge could be represented in this diagram, so does 0.8 C

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