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Kabir Chhabra
Subject: Physics
, asked on 8/5/18
$Theelectricpotentialatapoint(x,y)inthexy-planeisgivenbyV=\u2014Kxy.Theelectricfieldintensityatadis\mathrm{tan}cerfromtheoriginvariesas\phantom{\rule{0ex}{0ex}}\left(a\right){r}^{2}\phantom{\rule{0ex}{0ex}}\left(b\right)r\phantom{\rule{0ex}{0ex}}\left(c\right)2r\phantom{\rule{0ex}{0ex}}\left(d\right)2{r}^{2}$
Answer
2
Kabir Chhabra
Subject: Physics
, asked on 8/5/18
$Acubeofsidebhasachargeqateachofitsvertices.Thepotentialduetothischargearrayatthecentreofthecubeis\phantom{\rule{0ex}{0ex}}\left(a\right)zero\phantom{\rule{0ex}{0ex}}\left(b\right)\frac{4q}{\sqrt{3}\pi {\epsilon}_{0}b}\phantom{\rule{0ex}{0ex}}\left(c\right)\frac{q}{\pi {\epsilon}_{0}b}\phantom{\rule{0ex}{0ex}}\left(d\right)\frac{4q}{\pi {\epsilon}_{0}b}\phantom{\rule{0ex}{0ex}}\phantom{\rule{0ex}{0ex}}$
Answer
1
Kabir Chhabra
Subject: Physics
, asked on 8/5/18
$Sevencapacitors,aswitchSandasourceofemfareconnectedasshowninthefigure.Initially,Sisopenandallareuncharged.AfterSisclosedandsteadystateisattained,thepotentialdifferenceinvoltacrosstheplatesofthecapacitorAis:$
Answer
1
Kabir Chhabra
Subject: Physics
, asked on 8/5/18
$InthebasicCsClcrystalstructure,C{s}^{+}andC{l}^{-}ionsarearrangedinabccconfigurationasshownInthefigure.ThenetelectrostaticforceexertedbytheeightC{s}^{+}ionsontheC{l}^{-}ionsis\phantom{\rule{0ex}{0ex}}\left(a\right)\frac{1}{4\pi {\epsilon}_{0}}\frac{4{e}^{2}}{3{a}^{2}}\phantom{\rule{0ex}{0ex}}\left(b\right)\frac{1}{4\pi {\epsilon}_{0}}\frac{16{e}^{2}}{3{a}^{2}}\phantom{\rule{0ex}{0ex}}\left(c\right)\frac{1}{4\pi {\epsilon}_{0}}\frac{32{e}^{2}}{3{a}^{2}}\phantom{\rule{0ex}{0ex}}\left(d\right)zero$
Answer
4
Kabir Chhabra
Subject: Physics
, asked on 8/5/18
Q21
Q21. For circuit the equivalent capacitance between points P and Q is
(a) 6 C (b) 4 C (c)
$\frac{3}{2}$
C (d)
$\frac{6}{11}$
C
Answer
1
Kabir Chhabra
Subject: Physics
, asked on 8/5/18
Q21 and Q22:
21.
For circuit the equivalent capacitance between points P and Q is
$\left(a\right)6C\left(b\right)4C\left(c\right)\frac{3}{2}C\left(d\right)\frac{6}{11}C$
22.
Four identical capacitors are connected in senes with a 10 V battery as shown in the figure. Potentials at A and B are
(a) 10 V, 0 V (b) 7.5 V, -2.5 V
(c) 5 V, -5 V (d) 7.5 V, 2.5 V
Answer
1
Archit Anand K.p.
Subject: Physics
, asked on 7/5/18
If the electric potential of the inner metal sphere is 10 volt & that of the outer shell is 5 volt, then the potential at the centre will be :
(A) 10 volt (B) 5 volt (C) 15 volt (D) 0
Answer
1
Priyanshi
Subject: Physics
, asked on 7/5/18
Why option (c) cannot come ?? , If 2 are in parallel then 1+1 = 2 And then third in series So, 1/2 + 1 = 3/2 = 1.5
Q.
If three capacitors each of capacity 1
$\mu $
F are connected in such a way that the resultant capacity is 1.5
$\mu $
F, then [MP PET 1989]
A) All the three are connected in series
B) All the three are connected in parallel
C) Two of them are in parallel and connected in series to the third
D) Two of them are in series and then connected in parallel to the third
Answer
1
Raj Aryan
Subject: Physics
, asked on 4/5/18
Solve this fast plz!!!
Q. If dipole is placed at origin along x-axis then find the position where magnitude of electric field equals magnitude of electric potential.
Answer
1
Capt. Jack Sparrow
Subject: Physics
, asked on 4/5/18
Q. Calculate the charges which will flow in sections 1 and 2 in fig. 1(d). 64, when key K is pressed.
Answer
2
Priyanshi
Subject: Physics
, asked on 4/5/18
Ans given in this qus is (d) but i am getting (c) . Explain
Q.
If three capacitors each of capacity l
$\mu $
F are connected in such a way that the resultant capacity is 1.5
$\mu $
F, then [MP PET 1989]
A) All the three are connected in series
B) All the three are connected in parallel
C) Two of them are in parallel and connected in series to the third
D) Two of them are in series and then connected in parallel to the third
Answer
1
Raj Aryan
Subject: Physics
, asked on 3/5/18
Q. This is a uniform disc of sigma as surface charge density. Calclate potential at point P at the surface of disc. (Hint- Cut into small arcs)
Answer
1
Suroj Dey
Subject: Physics
, asked on 2/5/18
Q.17, Plzvsolve it and explain:
17. Three identical metallic plates A, B and C are initially given charges Q, 4Q and 2Q respectively. Now the plates A and C are connected by a conducting wire and plate B is earthed then.
(A) charge on the inner surface of plate A is 2Q.
(B) charge on the inner surface of plate C is zero.
(C) charge flown through the connecting wire from plate C to A is Q.
(D) charge flow to the plate B from ground is - 7Q.
Answer
2
Parth Dwivedi
Subject: Physics
, asked on 2/5/18
$Findtheequivalentcapaci\mathrm{tan}ceofthecombinationshowninFig.betweenthepointsXandY.$
Answer
1
Noel George Cherian
Subject: Physics
, asked on 1/5/18
A point charge 2µC is kept fixed at the origin. Another point charge 4µC is brought from far off point to 50cm from the origin. Calculate the electrostatic potential energy of this two charge system. calculate the work done to bring another charge of 1µC is brought to a point 100cm from each of these two charges (both the charges are assumed to be fixed)
Answer
1
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What are you looking for?

Q21. For circuit the equivalent capacitance between points P and Q is

(a) 6 C (b) 4 C (c) $\frac{3}{2}$C (d) $\frac{6}{11}$C

21. For circuit the equivalent capacitance between points P and Q is

$\left(a\right)6C\left(b\right)4C\left(c\right)\frac{3}{2}C\left(d\right)\frac{6}{11}C$

22. Four identical capacitors are connected in senes with a 10 V battery as shown in the figure. Potentials at A and B are

(a) 10 V, 0 V (b) 7.5 V, -2.5 V

(c) 5 V, -5 V (d) 7.5 V, 2.5 V

(A) 10 volt (B) 5 volt (C) 15 volt (D) 0

Q.If three capacitors each of capacity 1$\mu $F are connected in such a way that the resultant capacity is 1.5$\mu $F, then [MP PET 1989]A) All the three are connected in series

B) All the three are connected in parallel

C) Two of them are in parallel and connected in series to the third

D) Two of them are in series and then connected in parallel to the third

Q. If dipole is placed at origin along x-axis then find the position where magnitude of electric field equals magnitude of electric potential.

Q. Calculate the charges which will flow in sections 1 and 2 in fig. 1(d). 64, when key K is pressed.

Q.If three capacitors each of capacity l$\mu $F are connected in such a way that the resultant capacity is 1.5$\mu $F, then [MP PET 1989]A) All the three are connected in series

B) All the three are connected in parallel

C) Two of them are in parallel and connected in series to the third

D) Two of them are in series and then connected in parallel to the third

17. Three identical metallic plates A, B and C are initially given charges Q, 4Q and 2Q respectively. Now the plates A and C are connected by a conducting wire and plate B is earthed then.

(A) charge on the inner surface of plate A is 2Q.

(B) charge on the inner surface of plate C is zero.

(C) charge flown through the connecting wire from plate C to A is Q.

(D) charge flow to the plate B from ground is - 7Q.