2. Which quantity is measured as electrical power? a. the time rate of energy tr

Question

2. Which quantity is measured as electrical power?

a. the time rate of energy transfer

b. the number of charges flowing in a conductor per unit time

c. the amount by which a circuit element slows the flow of charge

d. the net amount of energy transferred into a circuit

3. What does the power rating of an electrical device measure?

a. the max. power the device can dissipate without overheating

b. the min. amt. of electrical energy that can be transferred into the device

c. the temp. at which the power dissipated by the device is greatest

d. the rate at which the device transforms one type of energy to another

Explanation / Answer

1.) 420 = V^2/R

R = 34.29ohm

2.) a.)

3.) ---a.)

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