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1 (a) 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 - Question 1 - 2019 - Paper 1

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1 (a) 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 ... show full transcript

Worked Solution & Example Answer:1 (a) 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 - Question 1 - 2019 - Paper 1

Step 1

Figure 1: Assigning Charges

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Answer

particledescription
protonnegative charge
electronno charge
neutronpositive charge

Step 2

Calculate the current in wire H

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Answer

To find the current in wire H, we can use the principle of conservation of current. The total current entering a junction equals the total current leaving that junction.

Current in wire H can be calculated as:

extCurrentinwireH=extCurrentinwireFextCurrentinwireG ext{Current in wire H} = ext{Current in wire F} - ext{Current in wire G} extCurrentinwireH=6.0extA3.5extA=2.5extA ext{Current in wire H} = 6.0 ext{ A} - 3.5 ext{ A} = 2.5 ext{ A}

Step 3

Calculate the quantity of charge

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Answer

Using the formula:

extcharge=extcurrentimesexttime ext{charge} = ext{current} imes ext{time}

we substitute in the values:

extcharge=0.9extAimes50exts=45extC ext{charge} = 0.9 ext{ A} imes 50 ext{ s} = 45 ext{ C}

Thus, the quantity of charge that flows is 45 C, and the unit is coulombs.

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