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ehidna [41]
3 years ago
15

What would happen? Why?

Physics
1 answer:
koban [17]3 years ago
6 0
Lightning rods provide low resistance paths to the ground that’ll be used to conduct the enormous electrical currents when lightning strikes happen. So the system will attempt to carry the harmful electrical current away from it and safely to ground. The system will have the ability to handle enormous electrical currents associated with the lightning strikes, if they contact a material that isn’t a good conductor then the material will suffer massive heat damage. So the lightning rod system is considered the best conductor & this allows the current to flow to the ground without causing any massive heat damage.
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Light bulb 1 operates with a filament temperature of 3000 K, whereas light bulb 2 has a filament temperature of 2000 K. Both fil
MatroZZZ [7]

Answer:

A₁/A₂ = 0.44

Explanation:

The emissive power of the bulb is given by the formula:

P = σεAT⁴

where,

P = Emissive Power

σ = Stefan-Boltzman constant

ε = Emissivity

A = Surface Area

T = Absolute Temperature of Surface

<u>FOR BULB 1:</u>

Since, emissivity and emissive power are constant.

Therefore,

P = σεA₁T₁⁴   ----------- equation 1

where,

A₁ = Surface Area of Bulb 1

T₁ = Temperature of Bulb 1 = 3000 k

<u>FOR BULB 2:</u>

Since, emissivity and emissive power are constant.

Therefore,

P = σεA₂T₂⁴   ----------- equation 2

where,

A₂ = Surface Area of Bulb 2

T₂ = Temperature of Bulb 1 = 2000 k

Dividing equation 1 by equation 2, we get:

P/P = σεA₁T₁⁴/σεA₂T₂⁴

1 = A₁(3000)²/A₂(2000)²

A₁/A₂ = (2000)²/(3000)²

<u>A₁/A₂ = 0.44</u>

6 0
3 years ago
Can you answer any of these?
givi [52]
#39. rain, snow, sleet and hail.
3 0
3 years ago
Read 2 more answers
If mass increases ,what must happen to the force in order to achieve the same change in motion?
igor_vitrenko [27]

Answer:

increase

Explanation:

8 0
3 years ago
2. A boy lifts a 30N toy car 3 meters
GarryVolchara [31]

Answer:

<h2>90 J</h2>

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 30 × 3

We have the final answer as

<h3>90 J</h3>

Hope this helps you

6 0
3 years ago
Think about the electricity sent to your home from a power plant. How does the voltage of the electricity that leaves the plant
creativ13 [48]

Answer:

C) High voltage to low voltage

Explanation:

At a power plant, there is a production of electricity at a high voltage compared to the voltage provided to our home.

Voltage of about 12 KV is produced by power plant which is then converted into about 400 KV or greater (depending upon the countries) to transfer electricity from power plant to city Grid station using Step-up transformer. At City Grid station, Step-down transformer is used to convert high voltage (about 400 KV) to low voltage (about 13 KV) to transfer electricity from grid station to the city. Then this low voltage (about 13 KV) again converted to 220 V using Step-down transformer for household usage. So, overall  about 12 KV voltage at power plant is converted into 220 V for household usage using step-up and step-down transformer at different stages.

4 0
3 years ago
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