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3 years ago

12

Calculate the resistance using Voltage and current, again using voltage and power, again using current and power, and again usin

g R1 and R2 recording the calculations for Run 3 rows 41-56

1 answer:

ale4655 [162]3 years ago

6 0

Answer:

R = V / I , R = V² / P, R = P / I²

Explanation:

For this exercise let's use ohm's law

V = I R

R = V / I

Electric power is defined by

P = V I

ohm's law

I = V / R

we substitute

P = V (V / R)

P = V² / R

R = V² / P

the third way of calculation

P = (i R) I

P = R I²

R = P / I²

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