A ideal battery is connected to the network shown: starting from the positive terminal

PHYSICS · Single correct · A Level · Physics · Electricity · Electricity

Problem

12\,\text{V}

ideal battery is connected to the network shown: starting from the positive terminal, current

I_1

flows through a

2\,\Omega

resistor to a junction

C

, then splits into currents

I_2

through a

4\,\Omega

resistor and

I_3

through a

6\,\Omega

resistor, both reaching the negative terminal of the battery. Given that

I_1 = I_2 + I_3

, determine the power dissipated in the

6\,\Omega

resistor. (a)

8.6\,\text{W}

(b)

6.5\,\text{W}

(c)

7.1\,\text{W}

(d)

11.1\,\text{W}