1. Defined capacitance of a capacitor. If the radius of a spherical conductor is equal to sum of all digits of your registration
number (in meter) then find the capacitance of the spherical conductor.
2. Write the difference between electric field and electric potential. Four charges of each equal to positive charge of magnitude same as the sum of last two digits of your date of birth. If they are placed at four corners of a square of side x then find potential at center of square.
3. Explain electric flux and Gauss law for electrostatics. Two point charges of 40 C and 10 C respectively are placed 6 meter apart. Find the location of the neutral points from the charge of 10 C.
prompt: " sum of all digits of my registration number = 22"
2. Write the difference between electric field and electric potential. Four charges of each equal to positive charge of magnitude same as the sum of last two digits of your date of birth. If they are placed at four corners of a square of side x then find potential at center of square.
3. Explain electric flux and Gauss law for electrostatics. Two point charges of 40 C and 10 C respectively are placed 6 meter apart. Find the location of the neutral points from the charge of 10 C.
prompt: " sum of all digits of my registration number = 22"
1 answer:
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Answer:
(a) 62.5 m
(b) 7.14 s
Explanation:
initial speed, u = 35 m/s
g = 9.8 m/s^2
(a) Let the rocket raises upto height h and at maximum height the speed is zero.
Use third equation of motion
h = 62.5 m
Thus, the rocket goes upto a height of 62.5 m.
(b) Let the rocket takes time t to reach to maximum height.
By use of first equation of motion
v = u + at
0 = 35 - 9.8 t
t = 3.57 s
The total time spent by the rocket in air = 2 t = 2 x 3.57 = 7.14 second.