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Zinaida [17]
4 years ago
9

Based on the diagram of the two electrical circuits, assuming the lightbulbs are all identical, which circuit will draw more pow

er?
Physics
1 answer:
pochemuha4 years ago
8 0
In series connection  in orde to find the total resistance we add all the resistance capacity but in parallel, we take the 1/R  and resistance = V  hence the series connection takes up more power,
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Does passing a magnet through a coil of wire break off it’s electric current
hichkok12 [17]
A magnetic field is actually generated by a moving current (or moving electric charge specifically). The magnetic field generated by a moving current can be found by using the right hand rule, point your right thumb in the direction of current flow, then the wrap of your fingers will tell you what direction the magnetic field is. In the case of current traveling up a wire, the magnetic field generated will encircle the wire. Similarly electromagnets work by having a wire coil, and causing current to spin in a circle, generating a magnetic field perpendicular to the current flow (again right hand rule).

So if you were to take a permenant magnet and cut a hole in it then string a straight wire through it... my guess is nothing too interesting would happen. The two different magnetic fields might ineteract in a peculiar way, but nothing too fascinating, perhaps if you give me more context as to what you might think would happen or what made you come up with this question I could help.

Source: Bachelor's degree in Physics.
7 0
3 years ago
The impulse given to a ball with mass of 2 kg is 16 N*s. If the ball starts from rest, what is its final velocity?
Alik [6]
The impulse is equal to the variation of momentum of the object:
I=\Delta p = m \Delta v
where m is the mass object and \Delta v = v_f - v_i is the variation of velocity of the object.

The ball starts from rest so its initial velocity is zero: v_i=0. So we can rewrite the formula as
I=m v_f
or 
v_f =  \frac{I}{m}

and since we know the impulse given to the ball (I=16 Ns) and its mass (m=2 kg), we can find the final velocity of the ball:
v_f =  \frac{16 Ns}{2 kg}=  8 m/s
7 0
3 years ago
Read 2 more answers
Calculate the displacement of the volleyball in sample problem 2f when teh volleyballs final velocity is 1.1 m/s upward
stich3 [128]
We have: v i (initial velocity) = 6 m/sv = 1.1 m/sa = - 9.8 m/s²v = v i + a · t1.1 m/s = 6 m/s - 9.8 m/s² t9.8 t = 6 - 1.19.8 t = 4.9t = 4.9 : 9.8t = 0.5 sThen the replacement:x = xi + vi · t + a t² / 2( xi = 0 )x = 6 · 0.5 - 9.8 · 0.25 / 2x = 3 - 1.225Answer:
x = 1.775 m

4 0
4 years ago
Need some help plsss!
RoseWind [281]

Answer:

1and4attract and1and 2repel

6 0
3 years ago
What is the slant of a line on a graph called
tatiyna

Ashleybotello0129,

What is the slant of a line on a graph called "the slope." Slopes are in math, and science. Slopes look like slanted lines start from one side and to another.

Hope this helps!

7 0
3 years ago
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