PLEASE HELP! For the circuit in the figure (Figure 1) . Assume that R 1= 1.5? an

Question

PLEASE HELP! For the circuit in the figure (Figure 1) . Assume that R1= 1.5? and R2 = 5.8? .

A.

Find the rate of conversion of internal (chemical) energy to electrical energy within the battery.

Express your answer using two significant figures.

P=____W

B.

Find the rate of dissipation of electrical energy in the battery.

Express your answer using two significant figures.

P1=_____W

C.

Find the rate of dissipation of electrical energy in the external resistor.

Express your answer using two significant figures.

P2= ____W

Explanation / Answer

A) I = V/(R1+R2)

= 12/(1.5+5.8)

= 1.644 A

P = V*I

= 12*1.644

= 19.73 Watts

B) P1 = I^2*R1

= 1.644^2*1.5

= 4.05 Watts

C) P2 = I^2*R2

= 1.644^2*5.8

= 15.6 Watts

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