The mass of the Book is 2.27 kg.
Explanation:
It is given that,
Length of the tube, l = 33 cm = 0.33 m
Diameter of the tube, d = 8.1 cm = 0.081 m
Number of turns, N = 590
(a) We need to find the self- inductance of the solenoid. The formula for the self inductance is given by :
A is the area of the solenoid
L = 0.00683 H
or
L = 6.83 mH
So, the self inductance of the solenoid is 6.83 mH.
(b) The current in this solenoid increases at the rate of 3 A/s. 
EMF in the solenoid is given by :
E = -20.49 volt
Hence, this is the required solution.
Answer:
angular velocity = π/2/15×60
= π/ 1800 rad/ s
b. deflects. A DC motor's magnet has a magnetic field that <em><u>deflects</u></em> the wire loop's magnetic field, therefore causing the loop to rotate.
When a conductor, through which an electric current passes, is immersed in a magnetic field, it experiences a deflects force according to the Law of Lorentz creating as result that the loop rotate.
Answer:
Explanation:
vertical component of the velocity of arrow
= 26 sin 60 = 22.516 m
height reached by it after 3.99 s
h = ut - 1/2 g t²
= 22.516 x 3.99 - .5 x 9.8 x 3.99²
= 89.83 - 78
11.83 m
Total height of cliff = 1.55 + 11.83
= 13.38 m
c ) maximum height covered s
v² = u² - 2gs
0 = u² - 2gs
s = u² / 2g
= 22.516² / 2 x 9.8
= 25.86
maximum height reached
= 25.86 + 1.55
= 27.41 m
d )
vertical speed after 3.99 s
v = u - gt
= 22.516 - 9.8 x 3.99
= -16.586
Horizontal component will remain unchanged
Horizontal component = 26 cos 60
= 13 m /s
Resultant of two velocities
= √ 13²+ 16.568²
= 21 m /s
