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9. All the resistors in the Figure have resistance 2002.and / 3.0 A aleulate the value o sistors in the Figure have resistance 200 ? and B+ 3.0 A. Calculate the value of 11 & 12. du or the circuit shown in the Figure. Suppose that E 11 V. (a) At what rate is energy energy dissipated in the 1000 ? resistor? (c) At what

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Answer #1

We know that the same current flows through the resistors connected in series.

We see that 3 R in last branch are in series, two in middle are in series, so

Rr = 200 + 200 + 200 = 600

Ir = 3 A

Drop here is Vr = Ir Rr = 600 + 3 = 1800 V

We know that the drop across the resistors connected in parallel is same. so

Vm = 1800 V = Vl

I2 = 1800/400 = 4.5 A

Hence, I2 = 4.5 A

I1 = 1800/200 = 9 A

Hence, I1 = 9 A

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