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3 years ago

If the current in this circuit is 3 A, what must be the value of R3?It's 5 Ω

Physics

2 answers:

Svetllana [295]3 years ago

5 0

Explanation :

It is given that,

In the given figure all the three resistors are in series.

Current flowing in the circuit, $I=3\ A$

Voltage, $V=30\ V$

We know that in series circuit the current flowing in all resistors is same.

Using Ohm's law, we get:

$V=IR$

$30\ V=3\ A(2\ \Omega+3\ \Omega+R_3)$

$R_3=5\ \Omega$

Hence, this is the required solution.

topjm [15]3 years ago

3 0

Answer:

Explanation:

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