What happens when batteries are connected in series?

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RRB ALP Electronics Mechanic 23 Jan 2019 Official Paper (Shift 3)
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  1. The capacitance doubles, the voltage rating remains the same.
  2. The voltage doubles, the capacitance rating doubles.
  3. Voltage remains the same, capacitance stays the same.
  4. The voltage doubles, the capacity rating remains the same.

Answer (Detailed Solution Below)

Option 4 : The voltage doubles, the capacity rating remains the same.
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Detailed Solution

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Series connection:

  • Increases output voltage.
  • Capacity remains the same (measured in ampere-hours).

F1 S.B Deepak 16.03.2020 D1

26 June 1

Parallel Connection:

In order to increase the ampere-hour rating of a battery, cells are connected in parallel.

This is explained with the help of the following diagram:

F1 S.B Deepak 16.03.2020 D2

  • The positive terminals of all batteries are connected together, or to a common conductor, and all negative terminals are connected in the same manner.
  • The final voltage remains unchanged while the capacity of the assembly is the sum of the capacities of the individual batteries of this connection.
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