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Priyanshi
Subject: Physics
, asked on 24/5/18
two identical charged spheres are suspended by strings of equal length .When they are imersed in kerosene the angle between their string remains the same as it was i the air . Find the density of spheres .The dielectric constant of kerosene is 2 and its density is 800kg/m3
Answer
1
Drishti
Subject: Physics
, asked on 23/5/18
Answer please
Q.5. Two charges - q each are fixed separated by distance 2d. A third charge q of mass m placed at the mid-point is displaced slightly by x (x << d) perpendicular to the line joining the two fixed charged as shown in Fig. 1.14. Show that q will perform simple harmonic - q oscillation of time period.
$T={\left[\frac{8{\mathrm{\pi}}^{3}{\mathrm{\epsilon}}_{0}{\mathrm{md}}^{3}}{{q}^{2}}\right]}^{1/2}$
Answer
1
Priyanshi
Subject: Physics
, asked on 23/5/18
Using gauss law find the intensity of electric field inside and outside the charged sphere having uniform volumn charged density
Answer
1
Priyanshi
Subject: Physics
, asked on 23/5/18
Derive the expression of the electric field produced due to uniformly charged infinite plane
Answer
1
Priyanshi
Subject: Physics
, asked on 23/5/18
obtain he expression of electric field due an infinitly long linear charged wire along the perpendicular distance from the wire
Answer
1
Vani Singh
Subject: Physics
, asked on 22/5/18
Solve this:
Answer
1
Vani Singh
Subject: Physics
, asked on 22/5/18
11
Answer
1
Vani Singh
Subject: Physics
, asked on 22/5/18
10
Answer
1
Sangeeta Jha
Subject: Physics
, asked on 22/5/18
Solve this :
8. A particle slides back and forth between two inclined frictionless planes as shown in Fig. Which of the following statements are correct with respect to the motion of particle ?
(i) The motion is oscillatory
(ii) The motion is simple hannonic
(iii) If h is the initial height,
$\mathrm{period}=\frac{4}{\mathrm{sin}\mathrm{\theta}}\sqrt{\frac{2\mathrm{h}}{\mathrm{g}}}$
(iv) If h is the initial height,
$\mathrm{period}=\sqrt{\frac{2\mathrm{h}}{\mathrm{g}}}\mathrm{sin}\mathrm{\theta}$
(1) (i, iii) (2) (i, iv)
(3) (i, ii) (4) (iii, iv)
Answer
1
Alok Singh
Subject: Physics
, asked on 22/5/18
How to find the formula of electric field intensity due to a charged rod at the midpoint on the surface of the charged rod?
Answer
1
Alok Singh
Subject: Physics
, asked on 22/5/18
The charges q1 = 2 micro C and q2 = -4 micro C are located at coordinate (-1,-1) and (3,2) respectively. If we have put one more charge q3 = 8 micro C in the line joining the two charges such that the charges maintain an equilibrium, then find the coordinate of location of q3 charge?
Answer
1
Alok Singh
Subject: Physics
, asked on 22/5/18
solve this
Answer
1
Alok Singh
Subject: Physics
, asked on 21/5/18
1.
What are the speeds of the charged bodies A and B at infinite distance from its initial position, when both are released? Given the mass of both is 10 g. Charge on them are
${Q}_{A}=100\mu C,{Q}_{B}=400\mu C.$
A) 600 m/s
B) 300 m/s
C) 100 m/s
D) 0 m/s
Answer
1
Alok Singh
Subject: Physics
, asked on 21/5/18
$ApendulumwithchargeqisplacedatthecentreofthelinejoiningtwoequalchargesQsuchthatthesystemsoscillationsareheavilydamped.Ifweconsidersuchasystem\phantom{\rule{0ex}{0ex}}tobeinequilibriumthenthevalueofqis\phantom{\rule{0ex}{0ex}}A.Q/8\phantom{\rule{0ex}{0ex}}B.-Q/8\phantom{\rule{0ex}{0ex}}C.q/4\phantom{\rule{0ex}{0ex}}D.-q/4$
Answer
1
Alok Singh
Subject: Physics
, asked on 21/5/18
Solve this:
Answer
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Q.5. Two charges - q each are fixed separated by distance 2d. A third charge q of mass m placed at the mid-point is displaced slightly by x (x << d) perpendicular to the line joining the two fixed charged as shown in Fig. 1.14. Show that q will perform simple harmonic - q oscillation of time period.

$T={\left[\frac{8{\mathrm{\pi}}^{3}{\mathrm{\epsilon}}_{0}{\mathrm{md}}^{3}}{{q}^{2}}\right]}^{1/2}$

8. A particle slides back and forth between two inclined frictionless planes as shown in Fig. Which of the following statements are correct with respect to the motion of particle ?

(i) The motion is oscillatory

(ii) The motion is simple hannonic

(iii) If h is the initial height, $\mathrm{period}=\frac{4}{\mathrm{sin}\mathrm{\theta}}\sqrt{\frac{2\mathrm{h}}{\mathrm{g}}}$

(iv) If h is the initial height, $\mathrm{period}=\sqrt{\frac{2\mathrm{h}}{\mathrm{g}}}\mathrm{sin}\mathrm{\theta}$

(1) (i, iii) (2) (i, iv)

(3) (i, ii) (4) (iii, iv)

What are the speeds of the charged bodies A and B at infinite distance from its initial position, when both are released? Given the mass of both is 10 g. Charge on them are ${Q}_{A}=100\mu C,{Q}_{B}=400\mu C.$

A) 600 m/s

B) 300 m/s

C) 100 m/s

D) 0 m/s