3 years ago

Explain whether a monopolist uses recources efficiently

1 answer:

7 0

It depends on the monopolist, it's in their best interest to use resource efficiently though because it can result in more profit naturally

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A 12.0 V car battery is being used to power the headlights of a car. Each of the two headlights has a power rating of 37.7 Watts

marshall27 [118]

Answer:

3.921*10^19 electrons

Explanation:

To find the number of electron that trough the car battery you first calculate the current by using the following formula, which relates the power with the voltage:

$P=IV$ (1)

P: power of both headlights = 2(37.7W) = 75.4 W

I: current = ?

V: voltage of the battery = 12.0 V

You solve the equation (1) for I:

$I=\frac{P}{V}=\frac{75.4W}{12.0V}=6.283A=6.238\frac{C}{s}$

Next, you use the equivalence 1C = 6.241*10^18 electrons:

$6.238\frac{C}{s}*\frac{6.241*10^{18}\ electrons}{1C}=3.921*10^{19}\ electrons/s$

The number of electrons that cross the battery per second is 3.921*10^19 electrons

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4 years ago

a technician connects the red lead of a voltmeter to the b+ [output] terminal of an ac generator and the black lead to the batte

stealth61 [152]

Answer:

He is testing for voltage drop (voltage drop test)

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Connecting the red lead of a voltmeter to the B+ output to an ac generator and black lead to a battery +ve terminal measures the voltage drop in the circuit when the engine is turned ON and all electrical accessories too.

with this he knows if the alternator is charging the battery.

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Height, weight, size

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