Answer:
Maximum possible voltage without shock across the thumb and index finger with a dry-skin = 33.88 V
Maximum possible voltage without shock across the thumb and index finger with a wet-skin = 0.135 V
Explanation:
From Ohm's law
V = IR
For the maximum possible voltage without shock for dry skin, the
R = 4.4 × 10⁵ Ω
I ≤ 77 μA
I ≤ 77 × 10⁻⁶ A
V ≤ 4.4 × 10⁵ × 77 × 10⁻⁶ = 33.88 V
For the maximum possible voltage without shock for dry skin, the
R = 1750 Ω
I ≤ 77 μA
I ≤ 77 × 10⁻⁶ A
V ≤ 1750 × 77 × 10⁻⁶ = 0.13475 V
Answer:
Plane mirror causes regular reflection of light. When a parallel beam of light is incident on a plane mirror it is reflected back parallely. Due to this property a plane mirror is used to see our image and not a rough surface
Friction made it difficult because an object in motion may not always stay in motion due to the friction caused by its movement. For instance, if you roll a ball down a straight platform, it will not go on forever. The friction of the platform and the ball with eventually slow it down and stop it.
Hope this helps!!
Answer:
r₂/r₁ = 1.82
Explanation:
The electric field due to a point charge, has the following expression:
For a distance r₁, the magnitude of the electric field is 395 N/C, so we can solve for r₁², as follows:
r₁² = (1)
For a distance r2, the magnitude of the electric field is 119 N/C, so we can solve for r₂², as follows:
r₂² =
We can find the quotient r₂/r₁, from (1) and (2):
r₂/r₁ = = 1.82
We can feel it as heat, using the nerve endings in our skins.