The statement would be False. T<span>he potential energy of a membrane potential comes solely from the difference in electrical charge across the membrane. In addition to that, membrane potential actually regulates the potential difference of nerve cells across the membrane estimated at 70 mV.</span>
Answer:
q = 2,95 10-6 C
Explanation:
The magnetic force on a particle is described by the equation
F = q v x B
Where bold indicate vectors
Let's make the vector product
vxB =
v x B = 1.20 106 [i ^ (4 0.130) - j ^ (3 0.130)]
vx B = 1.20 106 [0.52 i ^ - 0.39j ^]
As they give us the force module, let's use Pythagoras' theorem,
|v xB | =1.20 10⁶ √( 0.52² + 0.39²)
|v x B| = 1.20 10⁶ 0.65
v xB = 0.78 10⁶
Let's replace and calculate
2.30 = q 0.78 10⁶
q = 2.3 / 0.78 106
q = 2,95 10-6 C
Answer:
Potential difference across resistor will be 87.66 volt
Explanation:
We have given number of electrons
Charge on one electron
So total charge
Time is given t = 5 min
1 minute = 60 sec
So 5 minute = 5×60 = 300 sec
So current
Resistance is given R = 40 ohm
Sp from ohm's law potential difference across resistor v = iR = 2.1866×40 = 87.466 volt
Answer:
Young's modulus.
Explanation:
Let's see the definition of the three moduli announced.
First, the bulk modulus (K) is used to measure the resistance to compression of a fluid by the next expression:
<em>where V: is the volume and P: is the pressure of the substance. </em>
Second, the shear modulus (G) measure the stiffness of solids by the next equation:
<em>where F: is the force onto the material, A: is the material area, l: is the length and Δx: is the transverse displacement.</em>
And third, the Young's modulus (E) relates the stress and the strain in a material by the following equation:
<em>where σ: is the uniaxial stress, and ε: is the strain.</em>
Therefore, evaluating the definitions seen above, Young's modulus is the one that better describes the relationship between the stress and strain of the steel cable.
Have a nice day!