Question

what is meant by electrical circuit ? a 9 Ω resistance is cut in to three equal parts and connected in parallel. find the equivalent resistance of the combination?

Answer 1

Answer:

1) A continuous and closed path of electric current is called an electric circuit.

2) 9Ω resistance is cut into 3 equal parts. Therefore, the 9Ω resistance becomes 3 Ω individual resistances.

All 3 Ω resistances are connected in parallel

So, $\frac{1}{R}_{p} = \frac{1}{R}_{1} + \frac{1}{R}_{2} + \frac{1}{R}_{3}$

1/Rp = 1/3 + 1/3 + 1/3

1/Rp = 3/3

1/Rp =  1/1

  Rp =   1 Ω

Therefore the equivalent resistance of the combination is 1Ω

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Answer 2

Electrical circuit is that which provides movement of electrons... The equivalent resistance is 1 ohm

Because R is directly proportional to length