Which of the following is the correct definition of the capacity of a battery?

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RRB JE ECE 22 Apr 2025 Shift 1 CBT 2 Official Paper
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  1. The maximum current a battery can provide
  2. The maximum voltage a battery can generate
  3. The total energy a battery can deliver over a period of time
  4. The amount of charge a battery can store and deliver over a specific time period

Answer (Detailed Solution Below)

Option 4 : The amount of charge a battery can store and deliver over a specific time period
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Detailed Solution

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The correct answer is: 4) The amount of charge a battery can store and deliver over a specific time period
Explanation:

The capacity of a battery is defined as:

  • The total electric charge (in ampere-hours, Ah) it can store and deliver under specified conditions (e.g., discharge rate, temperature).

  • Example: A 10 Ah battery can theoretically deliver 1A for 10 hours or 2A for 5 hours.

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