Answer:
1.8 mV
Explanation:
The total number of turns in the solenoid is
where
n = 6500 is the number of turns per meter of length
is the length of the solenoid
The flux linkage through the solenoid is given by
where
B is the strength of the magnetic field
is the cross-sectional area of the solenoid
The strength of the field in the solenoid is given by
where I is the current.
At the beginning, I = 0, so the field is
And the flux linkage is
Later, the current is I = 1.5 A, so the field in the solenoid is
So, the flux linkage is
So, the change in flux linkage is
And therefore, the emf induced in the solenoid is (in magnitude)
Answer:
Flux = 3.85 × 10⁻⁶ T m²
Explanation:
A) Magnetic flux = area x magnetic field component perpendicular to the area
Ф = B A cos θ
B = 5 × 10⁻⁵ T
A = area = 0.25 x 0.34 = 0.085 m²
θ = angle = 90 - 65 = 25°
Ф =( 5 × 10⁻⁵)(0.085) cos 25 = 3.85 × 10⁻⁶ T m²
Answer:
yes
Explanation:
you will feel weary after shorter times
The heart rate will likely decrease. As the cardiac muscle, or heart, gets stronger, it takes less effort to pump more blood. As a result, the heart will probably beat less, decreasing the heart rate. This is why athletes often have lower heart rates than the average person.