Question

$\red{\square}$Study the following electric circuit and find (i) the current flowing in the circuit and (ii) the potential difference across 10 Ω resistor.
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Answer 1

Answer:

(i) 0.1A. (ii) 1v

Explanation:

we know that, V=IR

therefore, current I=V/R

1. resistance in series is given by Rs=R1+R2

=10+20.

=30

R=30Ω

and I=V/R

therefore I=3/30. =0.1A

the current flowing in the circuit is 0.1A

2. potential difference across 10 Ω resistor is

V=IR

V=0.1 x 10

V=1v

therefore potential difference across 10 Ω resistor is 1v