Physics-
General
Easy
Question
For a cell, the graph between the p.d.(V) across the terminals of the cell and the current I drawn from the cell is shown in the fig. the emf and the internal resistance of the cell is E and r respectively.
The correct answer is:
Related Questions to study
Physics-
One plate of a capacitor is connected to a spring as shown. Area of both the plate is 
and separation is 
when capacitor is uncharged. When capacitor is charged, in steady state separation between the plates is 0.8d. The force constant of the spring is :
One plate of a capacitor is connected to a spring as shown. Area of both the plate is and separation is when capacitor is uncharged. When capacitor is charged, in steady state separation between the plates is 0.8d. The force constant of the spring is :
Physics-General
Physics-
If the equivalent capacity between A and B in the circuit is 
, the capacity is
If the equivalent capacity between A and B in the circuit is , the capacity is
Physics-General
Physics-
The potential drop across 
capacitor is 6V. I
The potential drop across capacitor is 6V. I
Physics-General
Physics-
In the given circuit the effective capacity between A and B is
In the given circuit the effective capacity between A and B is
Physics-General
Physics-
In the given circuit P.D. between A and B in the steady state is
In the given circuit P.D. between A and B in the steady state is
Physics-General
Physics-
Two condensers of capacities 4mF and 6mF are connected to two cells as shown. Then
Two condensers of capacities 4mF and 6mF are connected to two cells as shown. Then
Physics-General
Physics-
If the potential at A is 2000V the potential at B is
If the potential at A is 2000V the potential at B is
Physics-General
Physics-
The capacity of each condenser in the following fig. is ' C ' . Then the equivalent capacitance across A and B is
The capacity of each condenser in the following fig. is ' C ' . Then the equivalent capacitance across A and B is
Physics-General
Physics-
A and B are two points in a closed circuit. The potential difference across the condenser of capacity 5mF is
A and B are two points in a closed circuit. The potential difference across the condenser of capacity 5mF is
Physics-General
Physics-
Two identical condensers M and N are connected in series with a battery. The space between the plates of 'M' is completely filled with dielectric medium of dielectric constant 8 and a copper plate of thickness d/2 is introduced between the plates of N. (d=distance of separation of the plates). Then the potentials of M and N are respectively.
Two identical condensers M and N are connected in series with a battery. The space between the plates of 'M' is completely filled with dielectric medium of dielectric constant 8 and a copper plate of thickness d/2 is introduced between the plates of N. (d=distance of separation of the plates). Then the potentials of M and N are respectively.
Physics-General
Physics-
The energy stored in 
and 
capacitors are
The energy stored in and capacitors are
Physics-General
Physics-
In the circuit, all capacitor are identical, each of capacity 
and they are infinite in number. If AB is connected to a battery of 10V then the charge drawn from the battery is :
In the circuit, all capacitor are identical, each of capacity and they are infinite in number. If AB is connected to a battery of 10V then the charge drawn from the battery is :
Physics-General
Physics-
The equivalent capacity between A and B in the given circuit is 
, 
The equivalent capacity between A and B in the given circuit is ,
Physics-General
Physics-
Two charges 
and 
Coulombs are shown in fig. A third charge 
coulomb is moved from point R to S along a circular path with P as centre. Change in potential energy is
Two charges and Coulombs are shown in fig. A third charge coulomb is moved from point R to S along a circular path with P as centre. Change in potential energy is
Physics-General
Physics-
Three concentric spherical metal shells A, B, C of radii a, b, c(c>b>a) have surface charge density 
and 
respectively. The potential of the middle shell is 
times
Three concentric spherical metal shells A, B, C of radii a, b, c(c>b>a) have surface charge density and respectively. The potential of the middle shell is times
Physics-General
