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3 years ago

L 5.1.5 Quiz: Electromagnetic Forces

Physics

2 answers:

dmitriy555 [2]3 years ago

8 0

Answer: B

Explanation: According to Coulomb: The same charges repel each other; unlike charges attract. Therefore, two negative or positives charges repel one another, while a positive charge attracts a negative charge.

We see that the only diagram who shows two like charges and their Electromagnetic Forces is B

padilas [110]3 years ago

4 0

Answer: B

According to Coulomb: Like charges repel each other; unlike charges attract. Thus, two negative or positives charges repel one another, while a positive charge attracts a negative charge.

We see that the only diagram who shows two like charges and their Electromagnetic Forces is B

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5. Define joint answer asap plz and ty

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A point at which parts of an artificial structure are joined. Hope this helps

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2 years ago

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A. How does increasing the voltage of a power supply in an electromagnet affect the strength of the magnetic field?

seropon [69]

PART A)

If we increase the voltage supply in an electromagnet then it will increase the current that is flowing in it

So here due to increase in current there will be increase in the magnetic field due to that electromagnet

PART B)

Here in electric generator the current is produced by rotating a coil between two strong magnets.

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PART C)

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PART D)

Force on a moving charge is given by

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here we know that

q = 0.000600 C

$v = 2.8 \times 10^5 m/s$

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now from above equation we have

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A lunar module weighs 12 metric tons on the surface of the Earth. How much work is done in propelling the module from the surfac

zhuklara [117]

Answer:

W=76.55 miles.metric tons

Explanation:

Given that

Weight on the earth = 12 tons

So weight on the moon =12/6 = 2 tons

( because at moon g will become g/6)

As we know that

$F=\dfrac{K}{x^2}$

Here x= 1100 miles

F 2 tons

$2=\dfrac{K}{1100^2}$

$K=2.4\times 10^6$

We know that

Work = F. dx

$W=\int_{x_1}^{x_2}F.dx$

$W=\int_{1100}^{1140}\dfrac{2.4\times 10^6}{x^2}.dx$

$W=-2.4\times 10^6\left[\dfrac{1}{x}\right]_{1100}^{1140}$

$W=-2.4\times 10^6\left[\dfrac{1}{1140}-\dfrac{1}{1100}\right]$

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