Pure water has a pH of 7. Pure water _______. A. is a neutral substance B. could be either an acid or a base C. is a base D. is
2 answers:
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Answer:
0.2 tesla
Explanation:
Number of turn, N = 101
Area, A = 5.61 x 10^-4 m^2
angle between the magnetic moment and magnetic field, θ = 48.9°
Torque, τ = 2.75 x 10^-5 Nm
Current, i = 0.00339 A
Let the magnetic field strength is B.
The formula for the torque is given by
where, M is the magnetic moment
M = N x i x A = 101 x 0.00339 x 5.61 x 10^-4 = 1.92 x 10^-4 Am^2
By substitute the values
2.75 x 10^-5 = 1.92 x 10^-4 x B x Sin 48.9°
B = 0.189 Tesla
B = 0.2 Tesla
Answer:
Vector K = 8 m
Explanation:
The given figure shows a right angle triangle JKL. It is given that :
vector L = 10 m
vector J = 6 m
We have to find vector k. We can find it by using Pythagoras theorem. According to this theorem, the sum of squares of perpendicular and the base is equal to the square of the longest side.
K = 8 m
Hence, the magnitude of vector K is 8 m.