Answer:
its constant i think
Explanation:
or its stable dunno which term will they be using
Answer:
pull
is your answer please give me some thanks
Answer:
Explanation:
Let c be the circumference and r be the radius
c = 2πr , r = c / 2π , area A = π r² = π (c/2π )² = (1/4π) x c²
flux (ψ) = BA = 1 X 1/4π X c²
dψ/dt = 1/4π x 2c dc/dt =1/2π x c x dc/dt
at t = 8 s
c = 161 - 13 x 8 = 57 cm , dc/dt = 13 cm/s
e = dψ/dt = (1 / 2π )x 57 x 13 x 10⁻⁴ = 118 x 10⁻⁴ V.
Answer:
They're going to increase the total resistance as ![R_{T} = \sum\limits_{i=1}^N \left(\frac{1}{R_i} \right)^{-1}](https://tex.z-dn.net/?f=R_%7BT%7D%20%3D%20%5Csum%5Climits_%7Bi%3D1%7D%5EN%20%5Cleft%28%5Cfrac%7B1%7D%7BR_i%7D%20%5Cright%29%5E%7B-1%7D)
Explanation:
If the resistors are in parallel, the potential difference is the same for each resistor. But the total current is the sum of the currents that pass through each of the resistors. Then
![I = I_1 + I_2 + ... + I_N](https://tex.z-dn.net/?f=I%20%3D%20I_1%20%2B%20I_2%20%2B%20...%20%2B%20I_N)
where
![I_i = \frac{V_i}{R_i}](https://tex.z-dn.net/?f=I_i%20%3D%20%5Cfrac%7BV_i%7D%7BR_i%7D)
but
for ![i,j= 1, 2,..., N](https://tex.z-dn.net/?f=i%2Cj%3D%201%2C%202%2C...%2C%20N)
so
![I = \frac{V}{R_1}+ \frac{V}{R_2} + ... + \frac{V}{R_N} = \left(\frac{1}{R_1} +\frac{1}{R_2} + ... + \frac{1}{R_N}\right)V = \frac{V}{R_T}](https://tex.z-dn.net/?f=I%20%3D%20%5Cfrac%7BV%7D%7BR_1%7D%2B%20%5Cfrac%7BV%7D%7BR_2%7D%20%2B%20...%20%2B%20%5Cfrac%7BV%7D%7BR_N%7D%20%3D%20%5Cleft%28%5Cfrac%7B1%7D%7BR_1%7D%20%2B%5Cfrac%7B1%7D%7BR_2%7D%20%2B%20...%20%2B%20%5Cfrac%7B1%7D%7BR_N%7D%5Cright%29V%20%3D%20%5Cfrac%7BV%7D%7BR_T%7D)
where
![R_T = \left(\frac{1}{R_1} +\frac{1}{R_2} + ... + \frac{1}{R_N}\right)^{-1} =\sum\limits_{i=1}^N \left(\frac{1}{R_i} \right)^{-1}](https://tex.z-dn.net/?f=R_T%20%3D%20%5Cleft%28%5Cfrac%7B1%7D%7BR_1%7D%20%2B%5Cfrac%7B1%7D%7BR_2%7D%20%2B%20...%20%2B%20%5Cfrac%7B1%7D%7BR_N%7D%5Cright%29%5E%7B-1%7D%20%3D%5Csum%5Climits_%7Bi%3D1%7D%5EN%20%5Cleft%28%5Cfrac%7B1%7D%7BR_i%7D%20%5Cright%29%5E%7B-1%7D%20)
Answer:
the branch of science concerned with the nature and properties of matter and energy. The subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms.