Physics-

General

Easy

Question

# Consider a thin square sheet of side and thickness made of a material of resistivity The resistance between two opposite faces, shown by the shaded areas in the figure is

- Directly proportional to
- Directly proportional to
- Independent of
- Independent of

## The correct answer is: Independent of

is independent of

Hence the correct option is (c).

### Related Questions to study

physics-

### The time taken by a block of wood (initially at rest)to slide down a smooth inclined plane long (angle of inclination is ) is

For one dimensional motion along a plane

### The time taken by a block of wood (initially at rest)to slide down a smooth inclined plane long (angle of inclination is ) is

physics-General

For one dimensional motion along a plane

Physics-

### A particle starts from rest. Its acceleration versus time is as shown in the figure. The maximum speed of the particle will be

The area under acceleration time graph gives change in velocity. As acceleration is zero at the end of

i.e. Area of

i.e. Area of

### A particle starts from rest. Its acceleration versus time is as shown in the figure. The maximum speed of the particle will be

Physics-General

The area under acceleration time graph gives change in velocity. As acceleration is zero at the end of

i.e. Area of

i.e. Area of

physics-

### graph for a particle is as shown. The distance travelled in the first is

Distance covered Area enclosed by graph

Area of triangle

Area of triangle

### graph for a particle is as shown. The distance travelled in the first is

physics-General

Distance covered Area enclosed by graph

Area of triangle

Area of triangle

Maths-

### Period of is

### Period of is

Maths-General

physics-

### A particle starts from rest at and undergoes an acceleration a in with time in seconds which is as shown

Which one of the following plot represents velocity in versus time in seconds

Takingthe motion from to

Taking the motion from to

### A particle starts from rest at and undergoes an acceleration a in with time in seconds which is as shown

Which one of the following plot represents velocity in versus time in seconds

physics-General

Takingthe motion from to

Taking the motion from to

Maths-

### Period of is

By fundamental property of f(x) periodic function with period T.

f (x+T) =f(x)

let f (x) =

assuming from the options smallest period of f(x) to be .

f (x+T) =f(x)

let f (x) =

assuming from the options smallest period of f(x) to be .

### Period of is

Maths-General

By fundamental property of f(x) periodic function with period T.

f (x+T) =f(x)

let f (x) =

assuming from the options smallest period of f(x) to be .

f (x+T) =f(x)

let f (x) =

assuming from the options smallest period of f(x) to be .

physics-

### Two inclined planes are located as shown in figure. A particle is projected from the foot of one frictionless plane along its line with a velocity just sufficient to carry it to top after which the particle slides down the other frictionless inclined plane. The total time it will take to reach the point is

The time of ascent = time of descent

total time of flight

or

total time of flight

or

### Two inclined planes are located as shown in figure. A particle is projected from the foot of one frictionless plane along its line with a velocity just sufficient to carry it to top after which the particle slides down the other frictionless inclined plane. The total time it will take to reach the point is

physics-General

The time of ascent = time of descent

total time of flight

or

total time of flight

or

physics-

### characteristic of a copper wire of length and area of cross-section is shown in figure. The slope of the curve becomes

Slope of graph

If experiment is performed at higher temperature then resistance increase and hence slope decrease, choice (a) is wrong.

Similarly in choice (b) and (c) resistance increase.

But for choice (d) resistance R increases, so slope decreases

If experiment is performed at higher temperature then resistance increase and hence slope decrease, choice (a) is wrong.

Similarly in choice (b) and (c) resistance increase.

But for choice (d) resistance R increases, so slope decreases

### characteristic of a copper wire of length and area of cross-section is shown in figure. The slope of the curve becomes

physics-General

Slope of graph

If experiment is performed at higher temperature then resistance increase and hence slope decrease, choice (a) is wrong.

Similarly in choice (b) and (c) resistance increase.

But for choice (d) resistance R increases, so slope decreases

If experiment is performed at higher temperature then resistance increase and hence slope decrease, choice (a) is wrong.

Similarly in choice (b) and (c) resistance increase.

But for choice (d) resistance R increases, so slope decreases

physics-

### Four concurrent coplanar forces in newton are acting at a point and keep it in equilibrium figure. Then values of and are

In equilibrium position along -direction

2 sin 60

or or

As

or

Along -direction,

N

2 sin 60

or or

As

or

Along -direction,

N

### Four concurrent coplanar forces in newton are acting at a point and keep it in equilibrium figure. Then values of and are

physics-General

In equilibrium position along -direction

2 sin 60

or or

As

or

Along -direction,

N

2 sin 60

or or

As

or

Along -direction,

N

physics-

### The effective capacitance between points and shown in figure. Assuming F and that outer capacitors are all F is

The arrangement shows a Wheatstone bridge.

As therefore the bridge is balanced.

Similarly,

effective capacitance

As therefore the bridge is balanced.

Similarly,

effective capacitance

### The effective capacitance between points and shown in figure. Assuming F and that outer capacitors are all F is

physics-General

The arrangement shows a Wheatstone bridge.

As therefore the bridge is balanced.

Similarly,

effective capacitance

As therefore the bridge is balanced.

Similarly,

effective capacitance

physics-

### The four capacitors, each of 25 F are connected as shown in figure. The DC voltmeter reads 200 V. the change on each plate of capacitor is

Charge on each plate of each capacitor

### The four capacitors, each of 25 F are connected as shown in figure. The DC voltmeter reads 200 V. the change on each plate of capacitor is

physics-General

Charge on each plate of each capacitor

physics-

### For the circuit shown in figure the charge on 4F capacitor is

Combined capacity of and = 1 + 5=

Now, and are in series.

Charge in the arm containing capacitor is

Now, and are in series.

Charge in the arm containing capacitor is

### For the circuit shown in figure the charge on 4F capacitor is

physics-General

Combined capacity of and = 1 + 5=

Now, and are in series.

Charge in the arm containing capacitor is

Now, and are in series.

Charge in the arm containing capacitor is

physics-

### The variation of electric potential with distance from a fixed point is shown in figure. What is the value of electric field at =2 m.

### The variation of electric potential with distance from a fixed point is shown in figure. What is the value of electric field at =2 m.

physics-General

Maths-

### The integrating factor of the differential equation is given by

### The integrating factor of the differential equation is given by

Maths-General

physics-

### As shown in figure, if the point is earthed and the point is given a potential of 2000 V, then the potential at point will be

Equivalent capacitance between points is

Now equivalent capacitance between points is

Charge on capacitor of capacity 5 is

(Since, potential at the point will be zero)

Now, potential difference across capacitor of 5 is

=1500volt

As,volt

Hence, volt.

Now equivalent capacitance between points is

Charge on capacitor of capacity 5 is

(Since, potential at the point will be zero)

Now, potential difference across capacitor of 5 is

=1500volt

As,volt

Hence, volt.

### As shown in figure, if the point is earthed and the point is given a potential of 2000 V, then the potential at point will be

physics-General

Equivalent capacitance between points is

Now equivalent capacitance between points is

Charge on capacitor of capacity 5 is

(Since, potential at the point will be zero)

Now, potential difference across capacitor of 5 is

=1500volt

As,volt

Hence, volt.

Now equivalent capacitance between points is

Charge on capacitor of capacity 5 is

(Since, potential at the point will be zero)

Now, potential difference across capacitor of 5 is

=1500volt

As,volt

Hence, volt.