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In the circuit above, the battery has EMF of 12 V, R1 is 1 Ohm, R2 is 2 Ohms and R3 is 3 Ohms

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In the circuit above, the battery has EMF of 12 V, R1 is 1 Ohm, R2 is 2 Ohms and R3 is 3 Ohms 

Find the power dissipated by R3

Find the voltage drop across R1 

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