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Lelu [443]
2 years ago
10

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]2 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]2 years ago
3 0

Answer:

5

Explanation:

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Part b)

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Part A)

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