An electron moves in a circular orbit of radius 10 cm with a constant speed of `4.0xx10^(6) ms^(-1)`. Determine the electric current at a point on the orbit.
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A uniformly charged sphere has charge Q. An electron (charge – e, mass m) revolves around it in a circular orbit of radius r. (a) Write the total ener
Correct Answer - (a). `-(Qe)/(8pi in_(0)r)` (b). 8T
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The circumference of circular orbit of electron in a `He^(+)` ion is five times the de-Broglie wavelength associated with the electron. Find the radiu
Correct Answer - `6.613 Å`
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A circular loop of radius 10 cm carries a current of 15A. At its center is placed a small loop of radius 1cm with 50 turns and a current of 1A. A) wha
Correct Answer - (a) `9.4 xx 10^(-5)`T, (b) 74.96 `Am69-1)`, © `1.5 xx 10^(-6)`Nm
2 Answers 1 views
The electric field at a point due to a point is `10NC^(-1)` and the electric potential at that point is `15JC^(-1)` Calculate the distance of the poin
Correct Answer - 0.5m, 0.83`xx10^(-9)C`
2 Answers 1 views
Charges of `+1.0xx10^(-11)C,-2.0xx10^(-11),+1.0xx10^(-11)C` are placed respectively at the corners B, C and D of a rectangle ABCD. Determine the poten
Correct Answer - 1.65V
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Calculate the electric potential energy of an electron-proton system of an atom . The radius of the orbit of the electron is `21.16xx10^(-11)`m the ch
Correct Answer - `-1.088xx10^(-18)J`
2 Answers 1 views
What is the electrostatic potential energy of the charge configuration shown in figure. Take `q_(1)=+1.0xx10^(-8)C,q_(2)=-2.0xx10^(-8)C,q_(3)=+3.0xx10
Correct Answer - `-6.36xx10^(-7)J`
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Assuming that a planet goes round the sun in a circular orbit of radius `0.5AU` determine the angle of maximum elongation for the planet and its dista
Correct Answer - `30^(@), 0.866AU`
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An object of mass 50 g moves uniformly along a circular orbit with an angular speed of 5 rad/s. If the linear speed of the particle is 25 m/s
Given: ω = 5 rad/s, v = 25 m/s, m = 50 g = 0.05 kg To find: radius (r), centipetal force (F) Formula: (i) v = ωr (ii) F = \(\frac{mv^2}{r}\) Calculation: From formula (i), r...
2 Answers 1 views
A man moves up on a 3 km long incline road with speed of 2m/s , then on a 3 km level road with speed of 3 m/s and moves down on a 3 km long incline ro
Correct Answer - 3 m/s
2 Answers 1 views