Question

If a battery causes a wire to carry a current of 4 Amps how many coulombs of charge flow past any point in the wire in 3 seconds

Answer 1

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According to above question ~

• Current (I) = 4 Amperes

• Time (t) = 3 seconds

• Charge (q) = ?

Let's find the charge (q) by using formula ~

• $I = \dfrac{q}{t}$

• $4 = \dfrac{q}{3}$

• $q = 4 \times 3$

• $q = 12 \: \: coulombs$

Hence, 12 coulombs of charge flow past any point in the wire in 3 seconds