Maths-
The order of differential equation
is
Maths-General
- 2
- 3
- 6

Answer:The correct answer is: 2
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physics-
A wheel of radius ‘r’ and mass ‘m’ stands in front of a step of height 'h’ The least horizontal force which should be applied to the axle of the wheel to allow it to raise onto the step is

Applying the condition of rotational equilibrium,

But

But
A wheel of radius ‘r’ and mass ‘m’ stands in front of a step of height 'h’ The least horizontal force which should be applied to the axle of the wheel to allow it to raise onto the step is

physics-General
Applying the condition of rotational equilibrium,

But

But
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Calculate the force ' ' F that is applied horizontally at the axle of the wheel which is necessary to raise the wheel over the obstacle of height 4m. Radius of the wheel is 1m and its mass is 

applying principle of moments
F (0.6)=100(0.8)
ÞF=133.3N
F (0.6)=100(0.8)
ÞF=133.3N
Calculate the force ' ' F that is applied horizontally at the axle of the wheel which is necessary to raise the wheel over the obstacle of height 4m. Radius of the wheel is 1m and its mass is 

physics-General
applying principle of moments
F (0.6)=100(0.8)
ÞF=133.3N
F (0.6)=100(0.8)
ÞF=133.3N
physics-
Two condensers, one of capacity
and the other of capacity
, are connected to a
volt battery , as shown. The work done in charging fully both the condensers is

The two capacitor the circuit are in parallel order, hence

The work done in charging the equivalent capacitor is stored in the form of potential energy.
Hence,


The work done in charging the equivalent capacitor is stored in the form of potential energy.
Hence,
Two condensers, one of capacity
and the other of capacity
, are connected to a
volt battery , as shown. The work done in charging fully both the condensers is

physics-General
The two capacitor the circuit are in parallel order, hence

The work done in charging the equivalent capacitor is stored in the form of potential energy.
Hence,


The work done in charging the equivalent capacitor is stored in the form of potential energy.
Hence,
physics-
A cubical block of side ‘L’ rests on a rough horizontal surface with coefficient of friction ‘m’ A horizontal force F is applied on the block as shown. If the coefficient of friction is sufficiently high so that the block does not slide before toppling, the minimum force required to topple the block is

applying the condition of rotational equilibrium

A cubical block of side ‘L’ rests on a rough horizontal surface with coefficient of friction ‘m’ A horizontal force F is applied on the block as shown. If the coefficient of friction is sufficiently high so that the block does not slide before toppling, the minimum force required to topple the block is

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applying the condition of rotational equilibrium

physics-
If the time period of a pendulum is 1 sec, then what is the length of the pendulum at point of intersection of l-T and
graph

If the time period of a pendulum is 1 sec, then what is the length of the pendulum at point of intersection of l-T and
graph

physics-General
maths-
Order and degree of differential equation
are
Order and degree of differential equation
are
maths-General
physics-
Two insulating plates are both uniformly charged in such a way that the potential difference between them is
V. (
, plate 2 is at a higher potential). The plates are separated by
m and can be treated as infinitely large. An electron is released from rest on the inner surface of plate 1. What is its speed when it hits plate 2? (e=1.6

Since
so electric field will point from plate 2 to plate 1.
The electron will experience an electric force, opposite to the direction of electric field, and hence move towards the plate 2.

Use work-energy theorem to find speed of electron when it strikes the plate 2.

Where
is the required speed.


The electron will experience an electric force, opposite to the direction of electric field, and hence move towards the plate 2.

Use work-energy theorem to find speed of electron when it strikes the plate 2.
Where
Two insulating plates are both uniformly charged in such a way that the potential difference between them is
V. (
, plate 2 is at a higher potential). The plates are separated by
m and can be treated as infinitely large. An electron is released from rest on the inner surface of plate 1. What is its speed when it hits plate 2? (e=1.6

physics-General
Since
so electric field will point from plate 2 to plate 1.
The electron will experience an electric force, opposite to the direction of electric field, and hence move towards the plate 2.

Use work-energy theorem to find speed of electron when it strikes the plate 2.

Where
is the required speed.


The electron will experience an electric force, opposite to the direction of electric field, and hence move towards the plate 2.

Use work-energy theorem to find speed of electron when it strikes the plate 2.
Where
physics-
What is the potential difference across 2
F capacitor in the circuit shown?


Net emf in the circuit here
While the equivalent capacity
Charge on each capacitor
What is the potential difference across 2
F capacitor in the circuit shown?

physics-General

Net emf in the circuit here
While the equivalent capacity
Charge on each capacitor
maths-
If m and n are order and degree of the equatio
then
If m and n are order and degree of the equatio
then
maths-General
physics-
What is the potential difference between points
in the circuit shown?

Consider the charge distribution as shown. Considering the branch on upper side, we have



Here,
…(i)
…(ii)
From Eqs. (i) and (ii), we get


Similarly for the lower side branch
…(iii)
...(iv)
From Eqs. (iii) and (iv)




Here,
From Eqs. (i) and (ii), we get
Similarly for the lower side branch
From Eqs. (iii) and (iv)
What is the potential difference between points
in the circuit shown?

physics-General
Consider the charge distribution as shown. Considering the branch on upper side, we have



Here,
…(i)
…(ii)
From Eqs. (i) and (ii), we get


Similarly for the lower side branch
…(iii)
...(iv)
From Eqs. (iii) and (iv)




Here,
From Eqs. (i) and (ii), we get
Similarly for the lower side branch
From Eqs. (iii) and (iv)
maths-
The solution of
is
The solution of
is
maths-General
physics-
A 2
capacitor is charged as shown in the figure. The percentage of its stored energy dissipated after the switch
is turned to positions 2 is

This charge will remain constant after switch is shifted from position 1 to position 2.
A 2
capacitor is charged as shown in the figure. The percentage of its stored energy dissipated after the switch
is turned to positions 2 is

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This charge will remain constant after switch is shifted from position 1 to position 2.
physics-
For the given figure, calculate zero correction.

For the given figure, calculate zero correction.

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physics-
The load versus extension graph for four wires of same material is shown. The thinnest wire is represented by the line

The load versus extension graph for four wires of same material is shown. The thinnest wire is represented by the line

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physics-
The graph shows the change ' ' Dl in the length of a thin uniform wire used by the application of force ‘F’ at different temperatures T1 and T2 The variation suggests that

The graph shows the change ' ' Dl in the length of a thin uniform wire used by the application of force ‘F’ at different temperatures T1 and T2 The variation suggests that

physics-General