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lisov135 [29]
3 years ago
6

HELPPP THIS IS IMPORTANT NOWW OMGG HELPPPP PLEASEE

Physics
1 answer:
valina [46]3 years ago
4 0

Answer:

The correct answer is -

19 - C) parasitism

20- B) commensalism

Explanation:

Parasitism is a type of symbiotic relationship among two different organisms where one is benefited and the other is harmed. The harmed organism known as the host and the benefitted organism called the parasite. For instance, tapeworms are parasites in the human body.

Commensalism is also a symbiotic relationship but in this relationship, one symbiont is benefitted but another one neither benefitted nor harmed. For instance, Hermit crabs use the shells of dead snails for homes.

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A coil has an inductance of 5 H and a resistance of 20 Ω. If a DC voltage of 100 V is applied to the coil, find the energy store
nadya68 [22]

Answer:62.5 J

Explanation:

Given

Inductance(L)=5 H

resistance(R)=20 \Omega

Voltage(V)=100 V

Current=\frac{100}{20}=5 A

Current in L-R circuit is given by

I=I_0\left [ 1-e^{-\frac{Rt}{L}}\right ]

and Power=i^2R+Li\frac{di}{dt}[/tex]

For Steady state i.e. att=\infty

I=I_0

Energy Stored is E=\frac{Li^2}{2}

E=\frac{5\times 5^2}{2}=62.5 J

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Leona [35]

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4 0
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cestrela7 [59]

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