$Specific\ resistance\ =resistivity\\
From\ formula\ on \ resistance:\ R= \frac{pL}{A}\ p-resistivity,\ L-length,\\ A-area\ of\ cross\ section\\
p= \frac{R*A}{L}= \frac{1,5Ohm*0,025*10^{-4}m^2 }{80* 10^{-2}m }=0,0003515625 Ohm*m$

3 0

2 years ago

If grade 7 students learn six periods and if one period is 40 minutes then how many seconds they learn per day

Ludmilka [50]

Answer:

C. 14400

Explanation:

40min × 6 periods = 240mins total.

1 minute = 60 seconds.

240 minutes × 60 = 14400 seconds.

6 0

2 years ago

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Which process do hydrogen atoms use to make the Sun's energy?

Maru [420]

Nuclear fusion, converts hydrogen atoms into helium

8 0

3 years ago

This is a force that acts over a distance, can not be seen, and causes like poles to repel and opposite poles to attract. What i

expeople1 [14]

C magnetism this is the answer

5 0

2 years ago

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