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Which of the following is the current flowing through the $4 Ω$ resistor in the given circuit?

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40 A

2 A

0.4 A

2.5 A

answer is D.

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Detailed Solution

In the given circuit, the current flowing through the

4 Ω

resistor is

2.5 A

According to Ohm's law, “the potential difference (

V

) is directly proportional to the current
(

I

) flowing through the circuit provided the physical conditions remain the same.” Mathematically,

V = IR

\Rightarrow I = \frac{V}{R}

Where R is the resistance of the component.
On substituting the given values, we get

\Rightarrow I = \frac{10}{4}

\Rightarrow I = 2.5 A

Hence, the current of

2.5 A

is flowing through the

4 Ω

resistor.

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