Question

b)Incasethetwocellsareidentical,eachofemfE=5Vandinternalresistancer=2 ohm,calculatethevoltage

acrosstheexternalresistanceR=10 ohm​

Answer 1

Answer:

ANSWER

r

eff

1

=

r

1

1

+

r

2

1

=

1

1

+

1

1

=2

⇒r

eff

=

2

1

Ω

r

eff

E

eff

=

r

1

E

1

+

r

2

E

2

⇒E

eff

=E=2V

⇒PD=E+ir

[∵i=0]

PD=E=2V

Explanation:

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Answer 2

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