Answer:
12.56 A.
Explanation:
The magnetic field of a conductor carrying current is give as
H = I/2πr ............................... Equation 1
Where H = Magnetic Field, I = current, r = distance, and π = pie
Making I the subject of the equation,
I = 2πrH............... Equation 2
Given: H = 1 T, r = 2 m.
Constant: π = 3.14
Substitute into equation 2
I = 2×3.14×2×1
I = 12.56 A.
Hence, the magnetic field = 12.56 A.
Answer:
The average speed is 5.8 m/s
Explanation:
I just did it
Answer:
how fast it is moving in m/s? 0.65 m/s.
Explanation:
given information:
the length of the arm, L - 0.9 m
angle, θ = 20°
First we calculate the distance in horizontal motion
s = 2 L sin θ
= 2 (0.9) sin 20°
= 0.62 m
now calculate the time
t/2 = 2π√(L/g)
t = π√(0.9/9.8)
= 0.95 s
the speed is
v = s/t
= 0.62/0.95
= 0.65 m/s
It would be 3.5m/s^2 East (Or whatever direction you want because it does not specify a direction for you and velocity Needs a direction, or else it would just be a scaler)
One of the most surprising things about a superconductor is that
it has NO electrical resistance. The resistance doesn't just become
very very very small. It becomes literally completely zero. (This is
a big part of the reason why it's called a "super-conductor".)
If you start an electric current flowing in a superconductor, you can
connect the ends of it together, and the current keeps going around
and around the loop and never dies out !