Question

Two cells each of e.m.f. 1.5 V and third cell of 1V are connected in
series. The battery voltage will be..​

Answer 1

Answer:

if they are connected in series .

then V = V1+V2

= 1.5 + 1 = 2.5 volt

is your correct answer

Explanation:

cells in series total voltage = V = V1 + V2

cells in parallel total voltage = V = V1 =V2

Answer 2

The battery voltage will be 4V.

Step by step calculations:

• Three cells in series.
• E₁ = 1.5 V
• E₂ =1.5 V
• E₃ = 1 V

     For a series connection, we know that

                  E = E₁ + E₂ + E₃

                  E = 1.5 + 1.5 + 10

                  E = 4 Volts

Remember

• In series
• E = E₁ + E₂ (sum ofthe  voltage of every component)
• In parallel
• E= E₁ = E₂ (same for every component)

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