Solved: In the circuit in Fig. E25.47, find (a) the rate

Chapter 25, Problem 51E

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QUESTION:

In the circuit in Fig. E25.51, find (a) the rate of conversion of internal (chemical) energy to electrical energy within the battery; (b) the rate of dissipation of electrical energy in the battery; (c) the rate of dissipation of electrical energy in the external resistor.

Equation Transcription:

Text Transcription:

1.0 omega

12.0 V

5.0 omega

Questions & Answers

QUESTION:

In the circuit in Fig. E25.51, find (a) the rate of conversion of internal (chemical) energy to electrical energy within the battery; (b) the rate of dissipation of electrical energy in the battery; (c) the rate of dissipation of electrical energy in the external resistor.

Equation Transcription:

Text Transcription:

1.0 omega

12.0 V

5.0 omega

ANSWER:

Solution 51E

Step 1:

a) In order to find out the rate of energy, we should use the equation for power here.

That is, Power, P = I2 R

Where, I - Current through the circuit

            R - effective resistance of the circuit

We substitute for I2 as I2 = V2/R2 ( From Ohm’s law)

Therefore, P = (V2/R2) R

That is, P = V2/R

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