A positive charge of `20 mu C` is placed 2 m away from a negative charge of `20 mu C`. Determine the electric field at a point 2 m away from each charges.
1 Answers
Talk Doctor Online in Bissoy App
A point charge `q_(0)` is placed at the centre of uniformly charges ring of total charge Q and radius R. If the point charge is slightly displaced wit
Only electric force is acting on `q_(0)` `:. W_(el)=DeltaK" "=1/2 mv^(2)-0" "implies" "`Now `W_(el)")"_(c rarr oo) =q_(0) V_(c) =q_(0) (KQ)/R`. `:. (Kq_(0)Q)/R=1/2 mv^(2)" "implies" "v=sqrt((2Kq_(0)Q)/(mR))`
2 Answers 1 views
In a region of space a uniform magnetic field exist in positive z direction and there also exists a uniform electric field along positive y direction.
Correct Answer - `R=(mE_(0))/(qB_(0)^(2))`
2 Answers 2 views
Two identical positive charges Q each are placed on the x axis at point (-a,0) and (a,0) A point charge of magnitude q is placed at the origin. For sm
Correct Answer - `(1)/(sqrt(2))`
2 Answers 4 views
An infinitely long time charge has linear charge density `lamdaC//m` the line charge is along the line `x=0,z=2m` find the electric field at point (1,
Correct Answer - `vecE=(lamda)/(4pi epsilon_(0))(hati-hatk)`
2 Answers 1 views
A point charge Q has been placed at a point outside a neutral spherical conductor. The induced charge density at point P on the surface of the conduct
Correct Answer - `(sigma)/(epsilon_(0))` in radially inward direction.
2 Answers 1 views
A negative charge `q_(1)=50 xx 10^(-9)C` and a positive charge `q_(2)=25 xx 10^(-9)C` are fixed at a distance l=20cm. Where should a thrid charge q be
Correct Answer - 0.48m, Fig1.10(see below),stable.
2 Answers 1 views
A charge Q is placed at each of the two opposite corners of a square of side a.A charge is placed at each of the other two corners. (a) if the reultan
Correct Answer - `Q=-2sqrt2q,1/(4piepsi_0)*(-7q^2)/(sqrt2Q)` they form a stable system
2 Answers 3 views
Two point charges of `+2xx10^(-8) C` are placed 6 apart. Determine the force on a point charge of `+1xx10^(-8) C ` placed at a distance of 5 cm from e
Correct Answer - `8.64 xx 10^(-4) N`
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
A charge of` +2.0xx 10 ^-8 C` is placed on the positive place and a charge of -`1.0 xx 10 ^-8 C` on the negative plate of a parallel- plate capacitor
Correct Answer - 12.5V
2 Answers 1 views