Maths-
General
Easy

Question

The side of an equilateral triangle is ´ a ´ units and is increasing at the rate of lambda blank u n i t s divided by s e c. The rate of increase of its area is

  1. fraction numerator 2 over denominator square root of 3 end fraction lambda blank a  
  2. square root of 3 lambda blank a  
  3. fraction numerator square root of 3 over denominator 2 end fraction lambda blank a  
  4. None of these  

The correct answer is: fraction numerator square root of 3 over denominator 2 end fraction lambda blank a

Related Questions to study

General
Maths-

In how many ways four men and three women may sit around a round table if all the women are together.

In how many ways four men and three women may sit around a round table if all the women are together.

Maths-General
General
Maths-

In how many ways 5 persons can sit at a round table, if two of the persons does not sit together.

In how many ways 5 persons can sit at a round table, if two of the persons does not sit together.

Maths-General
General
Maths-

The function f open parentheses x close parentheses equals fraction numerator x over denominator 2 end fraction plus fraction numerator 2 over denominator x end fraction has local minimum at

The function f open parentheses x close parentheses equals fraction numerator x over denominator 2 end fraction plus fraction numerator 2 over denominator x end fraction has local minimum at

Maths-General
parallel
General
Maths-

On which of the following intervals is the function f open parentheses x close parentheses equals 2 blank x to the power of 2 end exponent minus log invisible function application open vertical bar x close vertical bar comma x not equal to 0 increasing?

On which of the following intervals is the function f open parentheses x close parentheses equals 2 blank x to the power of 2 end exponent minus log invisible function application open vertical bar x close vertical bar comma x not equal to 0 increasing?

Maths-General
General
Physics-

A conducting circular loop is placed in a uniform magnetic field 0.04 blank T with its plane perpendicular to the magnetic field. The radius of the loop starts shrinking at 2 blank m m divided by s. The induced e m f in the loop when the radius is 2 blank c m is

A conducting circular loop is placed in a uniform magnetic field 0.04 blank T with its plane perpendicular to the magnetic field. The radius of the loop starts shrinking at 2 blank m m divided by s. The induced e m f in the loop when the radius is 2 blank c m is

Physics-General
General
Physics-

198.The transformation ratio in the step-up transformer is

198.The transformation ratio in the step-up transformer is

Physics-General
parallel
General
Physics-

Two coils A and B having turns 300 and 600 respectively are placed near each other, on passing a current of 3.0 blank a m p e r e in A, the flux linked with A is 1.2 cross times 10 to the power of negative 4 end exponent blank w e b e r and with B it is 9.0 cross times 10 to the power of negative 5 end exponent w e b e r. The mutual inductance of the system is

Two coils A and B having turns 300 and 600 respectively are placed near each other, on passing a current of 3.0 blank a m p e r e in A, the flux linked with A is 1.2 cross times 10 to the power of negative 4 end exponent blank w e b e r and with B it is 9.0 cross times 10 to the power of negative 5 end exponent w e b e r. The mutual inductance of the system is

Physics-General
General
Physics-

The magnetic flux across a loop of resistance 10 capital omega is given by ϕ equals 5 t to the power of 2 end exponent minus 4 t plus 1 blank w e b e r. How much current is induced in the loop after 0.2 sec

The magnetic flux across a loop of resistance 10 capital omega is given by ϕ equals 5 t to the power of 2 end exponent minus 4 t plus 1 blank w e b e r. How much current is induced in the loop after 0.2 sec

Physics-General
General
Physics-

A conducting square loop of side L and resistance R moves in its plane with a uniform velocity v perpendicular to one of its sides. A magnetic induction B constant in time and space, pointing perpendicular and into the plane of the loop exists everywhere with part of the loop outside the field, as shown in figure. The induced emf is

A conducting square loop of side L and resistance R moves in its plane with a uniform velocity v perpendicular to one of its sides. A magnetic induction B constant in time and space, pointing perpendicular and into the plane of the loop exists everywhere with part of the loop outside the field, as shown in figure. The induced emf is
Physics-General

parallel
General
Physics-

At a place the value of horizontal component of the earth’s magnetic field His 3 cross times 10 to the power of negative 5 end exponent w e b e r divided by m to the power of 2 end exponent. A metallic rod A B of length 2 blank m placed in east-west direction, having the end A towards east, falls vertically downward with a constant velocity of 50 blank m divided by s. Which end of the rod becomes positively charged and what is the value of induced potential difference between the two ends

At a place the value of horizontal component of the earth’s magnetic field His 3 cross times 10 to the power of negative 5 end exponent w e b e r divided by m to the power of 2 end exponent. A metallic rod A B of length 2 blank m placed in east-west direction, having the end A towards east, falls vertically downward with a constant velocity of 50 blank m divided by s. Which end of the rod becomes positively charged and what is the value of induced potential difference between the two ends

Physics-General
General
Physics-

A rectangular, a square, a circular and an elliptical loop, all in the left parenthesis x minus y right parenthesis plane, are moving out of a uniform magnetic field with a constant velocity stack V with rightwards arrow on top equals v blank stack i with rightwards arrow on top. The magnetic field is directed along the negative z-axis direction. The induced e m f, during the passage of these loops, out of the field region, will not remain constant for

A rectangular, a square, a circular and an elliptical loop, all in the left parenthesis x minus y right parenthesis plane, are moving out of a uniform magnetic field with a constant velocity stack V with rightwards arrow on top equals v blank stack i with rightwards arrow on top. The magnetic field is directed along the negative z-axis direction. The induced e m f, during the passage of these loops, out of the field region, will not remain constant for

Physics-General
General
Physics-

The armature of dc motor has 20 capital omega resistance. It draws current of 1.5 ampere when run by 220 blank v o l t s dc supply. The value of back e.m.f. induced in it will be

The armature of dc motor has 20 capital omega resistance. It draws current of 1.5 ampere when run by 220 blank v o l t s dc supply. The value of back e.m.f. induced in it will be

Physics-General
parallel
General
Physics-

The oscillating frequency of a cyclotron is 10 MHz. If the radius of its dees is 0.5 m, the kinetic energy of a proton, which is accelerated by the cyclotron is

The oscillating frequency of a cyclotron is 10 MHz. If the radius of its dees is 0.5 m, the kinetic energy of a proton, which is accelerated by the cyclotron is

Physics-General
General
Physics-

The flux linked with circuit is given byϕ equals t to the power of 3 end exponent plus 3 t minus 7. The graph between time left parenthesis x minus a x i s right parenthesis and induced emf left parenthesis y minus a x i s right parenthesis will be a

The flux linked with circuit is given byϕ equals t to the power of 3 end exponent plus 3 t minus 7. The graph between time left parenthesis x minus a x i s right parenthesis and induced emf left parenthesis y minus a x i s right parenthesis will be a

Physics-General
General
Maths-

For the curve y to the power of n end exponent equals a to the power of n minus 1 end exponent x if the subnormal at any point is a constant, then n is equal to

For the curve y to the power of n end exponent equals a to the power of n minus 1 end exponent x if the subnormal at any point is a constant, then n is equal to

Maths-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.