Question

two resistance of 10 ohm and 20 ohm are connected is series a potential difference across both the resistance is 3 ampere calculate total current across the circuit and find the potential difference across 10 ohm resistance​

Answer 1

Explanation:

In series combination current through all the resistor is same

Potential drop across 15Ω resistor =3V

3=i×15⇒

i=

5

1

A

Potential drop across 10Ω resistor =10×

5

1

=2V

Emf of cell =i(Req)=

5

1

(10+15+20)=

5

45

=9v

solution

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