Answer:
The direct current that will produce the same amount of thermal energy is 1.83 A
Explanation:
Given;
maximum current, I₀ = 2.59 A
The average power dissipated in a resistor connected in an AC source is given as;
![P_{avg} = I_{rms} ^2R](https://tex.z-dn.net/?f=P_%7Bavg%7D%20%3D%20I_%7Brms%7D%20%5E2R)
Where;
![I_{rms} = \frac{I_o}{\sqrt{2} }](https://tex.z-dn.net/?f=I_%7Brms%7D%20%3D%20%5Cfrac%7BI_o%7D%7B%5Csqrt%7B2%7D%20%7D)
![P_{avg} = (\frac{I_o}{\sqrt{2} } )^2R\\\\P_{avg} = \frac{I_o^2R}{2} ----equation(1)](https://tex.z-dn.net/?f=P_%7Bavg%7D%20%3D%20%28%5Cfrac%7BI_o%7D%7B%5Csqrt%7B2%7D%20%7D%20%29%5E2R%5C%5C%5C%5CP_%7Bavg%7D%20%3D%20%5Cfrac%7BI_o%5E2R%7D%7B2%7D%20----equation%281%29)
The average power dissipated in a resistor connected in a DC source is given as;
![P_{avg} = I_d^2R --------equation(2)](https://tex.z-dn.net/?f=P_%7Bavg%7D%20%3D%20I_d%5E2R%20--------equation%282%29)
where;
is direct current
Solve equation (1) and (2) together;
![I_d^2R = \frac{I_o^2R}{2} \\\\I_d^2 = \frac{I_o^2}{2} \\\\I_d=\sqrt{\frac{I_o^2}{2} } \\\\I_d = \frac{I_o}{\sqrt{2}} \\\\I_d = \frac{2.59}{\sqrt{2} } \\\\I_d = 1.83 \ A](https://tex.z-dn.net/?f=I_d%5E2R%20%3D%20%5Cfrac%7BI_o%5E2R%7D%7B2%7D%20%5C%5C%5C%5CI_d%5E2%20%3D%20%5Cfrac%7BI_o%5E2%7D%7B2%7D%20%5C%5C%5C%5CI_d%3D%5Csqrt%7B%5Cfrac%7BI_o%5E2%7D%7B2%7D%20%7D%20%20%5C%5C%5C%5CI_d%20%3D%20%5Cfrac%7BI_o%7D%7B%5Csqrt%7B2%7D%7D%20%5C%5C%5C%5CI_d%20%3D%20%5Cfrac%7B2.59%7D%7B%5Csqrt%7B2%7D%20%7D%20%5C%5C%5C%5CI_d%20%3D%201.83%20%5C%20A)
Therefore, the direct current that will produce the same amount of thermal energy is 1.83 A
The answer is c. athletes foot
![CH4+2O2=\ \textgreater \ CO2+2H2O](https://tex.z-dn.net/?f=CH4%2B2O2%3D%5C%20%5Ctextgreater%20%5C%20CO2%2B2H2O)
Since t<span>erms which are placed left to the arrow mark are reactants and those placed right are products you can easily solve the task represented above. According to the information I've provided CH4 is reactant and it is </span><span>Fule. So, the correct answer is B.</span>
Answer:
It will displace the same weight of fresh water i.e.16000N. The point is the body 'floats'- which is the underlying assumption here, and by Archimedes Principle, for this body or vessel or whatever it may be, to float it should displace an equal weight of water
Explanation:
Answer:
22 degree
Explanation:
Angle of incidence, i = 30 degree
the refractive index of water with respect to air is 4/3.
As the ray of light travels from rarer medium to denser medium, that mean air to water, the refraction takes place.
According to Snell's law,
Refractive index of water with respect to air = Sin i / Sin r
Where, r be the angle of refraction
4 / 3 = Sin 30 / Sin r
0.75 = 2 Sin r
Sin r = 0.375
r = 22 degree
Thus, the angle of refraction is 22 degree.