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Figure 1 gives the names of three atomic particles and some descriptions of the charge on the particles and their position in the atom - Edexcel - GCSE Physics Combined Science - Question 1 - 2019 - Paper 1

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Figure 1 gives the names of three atomic particles and some descriptions of the charge on the particles and their position in the atom. Draw one straight line from ... show full transcript

Worked Solution & Example Answer:Figure 1 gives the names of three atomic particles and some descriptions of the charge on the particles and their position in the atom - Edexcel - GCSE Physics Combined Science - Question 1 - 2019 - Paper 1

Step 1

Draw one straight line from each atomic particle to its correct description.

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Answer

  • Proton: negative charge
  • Electron: no charge
  • Neutron: positive charge

Step 2

Calculate the current in wire H.

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Answer

To find the current in wire H, use the principle of conservation of charge in the junction:

IF=IG+IHI_F = I_G + I_H

Substituting the known values:

6.0A=3.5A+IH6.0 A = 3.5 A + I_H

Solving for IHI_H gives:

IH=6.0A3.5A=2.5AI_H = 6.0 A - 3.5 A = 2.5 A

Step 3

Calculate the quantity of charge that flows through the wire in 50s.

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Answer

Using the equation:

Q=IimestQ = I imes t

Substituting the values:

  • Current I=0.9AI = 0.9 A
  • Time t=50st = 50 s

Now, substituting in the equation:

Q=0.9Aimes50s=45CQ = 0.9 A imes 50 s = 45 C

The unit of charge is the coulomb.

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