Whitch of the following is likely the best electrical insulator

1 answer:

6 0

Silver is best conductor with copper close behind.

best insulator depends on application. Teflon is best for very small currents, ceramic is probably best for high voltage, although a vacuum is also very good.

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Could someone help me in these exercises? please! :((

r-ruslan [8.4K]

I believe #1 is b and # 2 is D

3 0

3 years ago

Study the diagram and calculate the effort required to balance the load

Lisa [10]

Answer:

Solution given;

load =600N

effort=?

load distance: 0.6m

effort distance;2.6m

we have

load *load distance :effort *effort distance

0.6*600=effort *2.6

360/2.6=effort

effort:138.46N

Required effort is 138.5N.

6 0

3 years ago

the atomic number of krypton (kr) is 36, and its mass number is 84. how many neutrons does it have? 18 36 48 72

tino4ka555 [31]

By definition, we have that the number of neutrons is given by:

# neutrons = atomic mass - # protons

We know that the atomic mass is equal to 84.

We know the atomic number of Krypton is equal to 36. This means that the Krypton has 36 protons and 36 electrons.

Therefore, substituting values we have:

# neutrons = 84 - 36

# neutrons = 48

Answer:

The Krypton has 48 neutrons

5 0

3 years ago

Read 2 more answers

Two long, parallel wires are attracted to each other by a force per unit length of 305 µN/m. One wire carries a current of 25.0

kykrilka [37]

To solve this problem we will use the concepts related to the electromagnetic force related to the bases founded by Coulumb, the mathematical expression is the following as a function of force per unit area:

$\frac{F}{L} = \frac{kl_1l_2}{d}$