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What is the Current I in the Given Circuit (Fig. 36 )? - Physics

Diagram

What is the current I in the given circuit (Fig. )?

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Solution

In given circuit, two 2 ohm resistors in series are connected in parallel with another 2 ohm resistor;
Therefore equivalent resistance of the circuit, 

R = [(2 + 2-1 + (2)-1]-1

R = `(1/4 + 1/2 = 3/4)`-1

R = `4/3`

I = `"V"/"R" = 3/(4//3) = 9/4` A = 225A

Concept: Electrical Energy and Power
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APPEARS IN

Frank ICSE Class 10 Physics Part 2
Chapter 4 Current Electricity
Exercise 4.1 | Q 20 | Page 173
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