1
IIT-JEE 2012 Paper 1 Offline
MCQ (Single Correct Answer)
+4
-1
Consider a thin spherical shell of radius $$R$$ with center at the origin, carrying uniform positive surface charge density. The variation of the magnitude of the electric field $$\left| {\overrightarrow E \left( r \right)} \right|$$ and the electric potential $$V(r)$$ with the distance $$r$$ from the center, best represented by which graph?
A
IIT-JEE 2012 Paper 1 Offline Physics - Electrostatics Question 58 English Option 1
B
IIT-JEE 2012 Paper 1 Offline Physics - Electrostatics Question 58 English Option 2
C
IIT-JEE 2012 Paper 1 Offline Physics - Electrostatics Question 58 English Option 3
D
IIT-JEE 2012 Paper 1 Offline Physics - Electrostatics Question 58 English Option 4
2
IIT-JEE 2011 Paper 1 Offline
MCQ (Single Correct Answer)
+2
-0.5
Consider an electric field $$\overrightarrow E = {E_0}\widehat x$$ where $${E_0}$$ is a constant. The flux through the shaded area (as shown in the figure) due to this field is
IIT-JEE 2011 Paper 1 Offline Physics - Electrostatics Question 61 English
A
$$2{E_0}{a_2}$$
B
$$\sqrt 2 {E_0}{a^2}$$
C
$${E_0}\,{a^2}$$
D
$${{{E_0}{a^2}} \over {\sqrt 2 }}$$
3
IIT-JEE 2011 Paper 2 Offline
MCQ (Single Correct Answer)
+2
-0.5
Which of the field patterns given below is valid for electric field as well as for magnetic field ?
A
IIT-JEE 2011 Paper 2 Offline Physics - Electrostatics Question 60 English Option 1
B
IIT-JEE 2011 Paper 2 Offline Physics - Electrostatics Question 60 English Option 2
C
IIT-JEE 2011 Paper 2 Offline Physics - Electrostatics Question 60 English Option 3
D
IIT-JEE 2011 Paper 2 Offline Physics - Electrostatics Question 60 English Option 4
4
IIT-JEE 2010 Paper 2 Offline
MCQ (Single Correct Answer)
+2
-0.5
A uniformly charged thin spherical shell of radius $$R$$ carries uniform surface charge density of $$\sigma $$ per unit area. It is made of two hemispherical shells, held together by pressing them with force $$F$$ (see figure). $$F$$ is proportional to

IIT-JEE 2010 Paper 2 Offline Physics - Electrostatics Question 62 English
A
$${1 \over {{\varepsilon _0}}}{\sigma ^2}{R^2}$$
B
$${1 \over {{\varepsilon _0}}}{\sigma ^2}R$$
C
$${1 \over {{\varepsilon _0}}}{{{\sigma ^2}} \over R}$$
D
$${1 \over {{\varepsilon _0}}}{{{\sigma ^2}} \over {{R^2}}}$$
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