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nataly862011 [7]
3 years ago
7

A 2.0 m conductor is formed into a square and placed in the horizontal xy-plane. Magnetic field is oriented 30.0° above the hori

zontal with a strength of 1.0 T. What is the magnetic flux through the conductor
Physics
1 answer:
Sloan [31]3 years ago
6 0

Answer:

The magnetic flux through the conductor is   0.125\, T.m^{2}

Explanation:

Given

Perimeter of square = 2.0 m

Magnetic field strength , B = 1.0 T at 30 degree with the horizontal

Therefore angle of magnetic field with the normal , \Theta =(90-30)^{\circ}=60^{\circ}

Let side of square be a

\therefore 4a= 2.0\, m=>a=0.5\, m

Therefore area of square is given by

A=a^{2}=0.5^{2}\, m^{2}=0.25\, m^{2}

Magnetic flux through the conductor is given by

\phi =BA\cos \Theta =1.0\times 0.25\times \cos (60^{\circ})\, T.m^{2}

=>\phi =0.125\, T.m^{2}

Thus the magnetic flux through the conductor is 0.125\, T.m^{2}

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Can the velocity of a body revese the direction when acceleration is constant?
andriy [413]

Answer:

Yes, the velocity of the object can reverse direction when its acceleration is constant. For example consider that the velocity of any object at any time t is given as: ... At At t = 0 sec, the magnitude of velocity is 2m/s and is moving in the forward direction i.e.v (t) = -2.

7 0
3 years ago
What is the frequency of an electromagnetic wave that has a wavelength of 300,000 km? (the speed of light is 300,000 km/s.)?
expeople1 [14]
Frequency represents the number of complete oscillations in one second. it is measured in Hertz (Hz). Electromagnetic waves are waves which do not require a material media for transmission. They travel with a speed of light.
The speed (m/s) of a wave is given by  frequency (Hz) × Wavelength (m)
Speed is 300,000 km/sec or 300,000,000 m/s and the wavelength is 300,000  km or 300,000,000 m.
Frequency = speed÷ wavelength
                 = 300000000 ÷ 300000000 = 1
Therefore, the frequency of the wave is 1Hz

6 0
3 years ago
How long it take a train to cover 630km having a speed of 30 km/hr​
noname [10]

Answer:

21 hours

Explanation:

well 30 x 20 = 600 than 21 = 630

4 0
3 years ago
A kid throws a ball from a tower 45 meters tall how fast is the ball going when it hits the ground?
IRISSAK [1]

Answer:

29.69 m/s

Explanation:

From the question given above, the following data were obtained:

Height (h) = 45 m

Velocity (v) =...?

Next, we shall determine the time taken for the ball to get to the ground. This can be obtained as follow:

Height (h) = 45 m

Acceleration due to gravity (g) = 9.8 m/s²

Time (t) =?

h = ½gt²

45 = ½ × 9.8 × t²

45 = 4.9 × t²

Divide both side by 4.9

t² = 45/4.9

Take the square root of both side

t = √(45/4.9)

t = 3.03 s

Finally, we shall determine the velocity with which the ball hits the ground. This is illustrated below:

Initial velocity (u) = 0 m/s

Acceleration due to gravity (g) = 9.8 m/s²

Time (t) = 3.03 s

Final velocity (v) =.?

v = u + gt

v = 0 + (9.8 × 3.03)

v = 0 + 29.694

v = 29.694 ≈ 29.69 m/s

Therefore, the ball hits the ground with a velocity of 29.69 m/s.

8 0
4 years ago
calculate the magnitude of the electric field intensity in vacuum at a distance of 20 cm from a charge of 5 * 10 raise to power
forsale [732]

Answer:

1.1259*10^9 Newton per Columb

Explanation:

the magnitude of the electric field intensity can be calculated using the expresion below;

E=Kq/r^2

Where k= constant

q= electric charge

r=distance= 2cm= 20*10^-2m( we convert to m for unit consistency

:,K=59*10^9 Columb

If we substitute the value into above formula we have

E=(9*10^9)*(5*10^-3)/(20*10^-2)^2

=1.1259*10^9 Newton per Columb

Therefore,the magnitude of the electric field intensity in vacuum at a distance of 20 cm is 1.1259*10^9 Newton per Columb

3 0
3 years ago
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