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Luda [366]
3 years ago
11

How long it takes a 100 watt light bulb to use 10,000 J of electrical energy?​

Chemistry
1 answer:
vlabodo [156]3 years ago
7 0

Answer:

A 100-watt light bulb takes 100 seconds to use 10,000 J of electrical energy.

Explanation:

Power refers to the amount of work done (or energy consumed) per unit of time. It is usually measured in watts (W), which is equal to 1 Joules per second (\frac{J}{s})

So, by definition, to calculate the power consumed or supplied in a time interval the following expression is used:

P=\frac{W}{t}

where P is the power measured in Watts, W is the work measured in Joules, and t is the time measured in seconds.

In this case:

  • P=100 Watt
  • W= 10,000 J
  • t= ?

Replacing:

100 Watt=\frac{10,000 J}{t}

Solving:

t=\frac{10,000 J}{100 Watt}

t=100 seconds

<u><em> A 100-watt light bulb takes 100 seconds to use 10,000 J of electrical energy.</em></u>

<u><em></em></u>

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