A sphere of radius r is charged to a potential V. The outward pull per unit area of its surface is given by
Answer:The correct answer is:
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Aniline is not the major product in one of the following reactions. Identify that reaction.
Aniline is not the major product in one of the following reactions. Identify that reaction.
The reaction,
is called:
The reaction, is called:
If area of each plate is A and the successive separations are d, 2d and 3d then the equivalent capacitance across A and B is
If area of each plate is A and the successive separations are d, 2d and 3d then the equivalent capacitance across A and B is
The correct set of the products obtained in the following reactions is
a) 
b) 
c) 
d) 
The correct set of the products obtained in the following reactions is
a)
b)
c)
d)
Two plates, each of area A, are placed parallel to each other at a distance d. One plate is connected to a battery of e.m.f. E and its negative is earthed. The other plate is also earthed.
The charge drawn by plate is
Two plates, each of area A, are placed parallel to each other at a distance d. One plate is connected to a battery of e.m.f. E and its negative is earthed. The other plate is also earthed.
The charge drawn by plate is
The products of above sequence of reactions are
The products of above sequence of reactions are
'D' is :
'D' is :
Four plates of equal area A are separated by equal distance d and are arranged as shown in the figure. The equivalent capacity is
Four plates of equal area A are separated by equal distance d and are arranged as shown in the figure. The equivalent capacity is
When does the current flow through the following circuit
When does the current flow through the following circuit
Consider the following reaction
, What is Y ?
Consider the following reaction, What is Y ?
Two identical capacitors have the same capacitance C. One of them is charged to potential 
and the other to 
. The negative ends of the capacitors are connected together. When the positive ends are also connected, the decrease in energy of the system is
Two identical capacitors have the same capacitance C. One of them is charged to potential and the other to . The negative ends of the capacitors are connected together. When the positive ends are also connected, the decrease in energy of the system is
Z is identified as
Z is identified as
The reactant (X) in the reaction, (X) 
Cinnamic acid is
The reactant (X) in the reaction, (X) Cinnamic acid is
Two identical metal plates are given positive charges Q1 and Q2 (< Q1 ) respectively. If they are now brought close together to form a parallel plate capacitor with capacitance C, the potential difference between them is
Two identical metal plates are given positive charges Q1 and Q2 (< Q1 ) respectively. If they are now brought close together to form a parallel plate capacitor with capacitance C, the potential difference between them is
A capacitor of capacitance 
charged to a potential 
and then isolated. A small capacitor C is then charged from , discharged and charged again; the process being repeated n times. Due to this, potential of the larger capacitor us decreased to V . The value of C is
A capacitor of capacitance charged to a potential and then isolated. A small capacitor C is then charged from , discharged and charged again; the process being repeated n times. Due to this, potential of the larger capacitor us decreased to V . The value of C is