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3 years ago

what happens to the current across a circuit when the voltage is doubled while the resistance is held back

2 answers:

8 0

The current is directly proportional to the voltage and inversely proportional to the resistance. So doubling or tripling the resistance will cause the current to be one-half or one-third the original value

Lynna [10]3 years ago

7 0

Since the current is inversely propotional to its resistance, when the voltage is doubled the current will be one-half

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UNO [17]

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5 0

3 years ago

A cement factory emits 900 kilograms of CO2 to produce 1,000 kilograms of cement. A fully grown tree removes six kilograms of CO

Dmitriy789 [7]

<h3>Answer;</h3>

To make the factory carbon neutral, the owners need to grow 15000 trees over an area of land measuring 75 acres

<h3>Explanation and solution;</h3>

From the information;

900 kg CO2 = 1000 kg Cement

1 tree = 6 kg CO2

1 acre = 200 trees

100000 kg Cement will require;

=(900 × 100000)/1000

= 90,000 kg of CO2

But 1 tree = 6 kg of CO2

Number of trees = 90,000/6

= 15,000 trees

But, 1 acre = 200 trees

Number of acres = 15,000/200

= 75 acres of land

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To make the factory carbon neutral, the owners need to grow 15000 trees over an area of land measuring 75 acres

6 0

3 years ago

Read 2 more answers

On another planet, a marble is released from rest at the top of a high cliff. It falls 4.00 m in the first 1 s of its motion. Th

miss Akunina [59]

Answer:

Distance(h1) = 12 m

Explanation:

Given :

Height of cliff (h) = 4m

Time (t) = 1s

Intial velocity (u) = 0m/s

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Distance(h) = 1/2(g)(t)²

4 = 1/2(g)

g = 8m/s ²

Distance(h1) = 1/2(g)[(t1)²-(t)²]

Distance(h1) = 1/2(8)(3)

Distance(h1) = 12 m

8 0

3 years ago

In a light interference pattern, alternate dark and bright fringes are seen. Why are the bright fringes formed?

madreJ [45]

The light interference pattern is a series of light and dark stripes.

The bright stripes are areas where there is CONstructive interference.

The dark stripes are areas where there is DEstructive interference.

7 0

4 years ago

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If 7kg of onions costs 140 rupees then how much would we pay for 12kg of onions?

Rudik [331]

Answer:

240 rupees

Explanation:

As 7 kg of onions costs 140 rupees, each kg costs 20 rupees, and 12x20=240 rupees.

6 0

4 years ago

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what happens to the current across a circuit when the voltage is doubled while the resistance is held back ​

what happens to the current across a circuit when the voltage is doubled while the resistance is held back