Calculate the quantity of electricity, in Coulombs, transferred when a steady electric cur… — JAMB UTME

Calculate the quantity of electricity, in Coulombs, transferred when a steady electric current of $5.0\text{ A}$ is passed through an electrolytic cell for $20\text{ minutes}$ .

Answer: 6000 C

Answer

The quantity of electricity transferred is

6000\text{ C}

According to Faraday's laws of electrolysis, the total charge

Q

passed through an electrolyte is calculated by

Q = I \times t

. Converting

20\text{ minutes}

to seconds gives

20 \times 60 = 1200\text{ s}

. Multiplying by the current

5.0\text{ A}

gives

Q = 5.0 \times 1200 = 6000\text{ C}

Step-by-Step Solution

Convert time from minutes to seconds

t = 1200\text{ s}

Electric current in Amperes measures charge per second, so time must be converted to seconds.

Calculate electric charge using

Q = I \times t

Q = 6000\text{ C}

The quantity of electricity (

Q

) in Coulombs equals current (

I

) in Amperes multiplied by time (

t

) in seconds.

Key Concept

Calculation of Quantity of Electricity (

Q = I \times t

)

Question

Answer

Step-by-Step Solution

Key Concept

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