Physics-
General
Easy

Question

According to Lenz’s law of electromagnetic induction

  1. The induced emf is not in the direction opposing the change in magnetic flux.  
  2. The relative motion between the coil and magnet produces change in magnetic flux  
  3. Only the magnet should be moved towards coil  
  4. Only the coil should be moved towards magnet   

The correct answer is: The relative motion between the coil and magnet produces change in magnetic flux


    According to Lenz’s law of electromagnetic induction, the relative motion between the coil and magnet produces change in magnetic flux.

    Related Questions to study

    General
    Physics-

    Two circular coils A and B are facing each other as shown in figure. When the current i through A is altered

    Two circular coils A and B are facing each other as shown in figure. When the current i through A is altered
    Physics-General

    General
    Physics-

    A circular loop of radius R, carrying current I lies in x y minusplane with its centre at origin. The total magnetic flux through x y-plane is

    A circular loop of radius R, carrying current I lies in x y minusplane with its centre at origin. The total magnetic flux through x y-plane is

    Physics-General
    General
    Physics-

    The current through a coil of self inductanceL equals 2 blank m H is given by I equals t to the power of 2 end exponent e to the power of negative t end exponent at time. t. How long it will take to make the e.m.f. zero

    The current through a coil of self inductanceL equals 2 blank m H is given by I equals t to the power of 2 end exponent e to the power of negative t end exponent at time. t. How long it will take to make the e.m.f. zero

    Physics-General
    parallel
    General
    Physics-

    When a low flying aircraft passes over head, we sometimes notice a slight shaking of the picture on our TV screen. This is due to

    When a low flying aircraft passes over head, we sometimes notice a slight shaking of the picture on our TV screen. This is due to

    Physics-General
    General
    Physics-

    A 220-volt input is supplied to a transformer. The output circuit draws a current of 2.0 ampere at 440 volts. If the efficiency of the transformer is 80%, the current drawn by the primary windings of the transformer is

    A 220-volt input is supplied to a transformer. The output circuit draws a current of 2.0 ampere at 440 volts. If the efficiency of the transformer is 80%, the current drawn by the primary windings of the transformer is

    Physics-General
    General
    Physics-

    The flux associated with coil changes from 1.35 Wb to 0.79 Wb withinfraction numerator 1 over denominator 10 end fraction s. Then the charge produced by the earth coil, if resistance of coil is 7capital omega is

    The flux associated with coil changes from 1.35 Wb to 0.79 Wb withinfraction numerator 1 over denominator 10 end fraction s. Then the charge produced by the earth coil, if resistance of coil is 7capital omega is

    Physics-General
    parallel
    General
    Physics-

    A movable wire is moved to the right crossing an anti-clock-wise induced current, figure. The direction of magnetic induction in the region P points

    A movable wire is moved to the right crossing an anti-clock-wise induced current, figure. The direction of magnetic induction in the region P points
    Physics-General

    General
    Physics-

    The number of turns in the primary coil of a transformer is 200 and the number of turns in the secondary coil is 10. If 240 blank v o l t blank A Cis applied to the primary, the output from the secondary will be

    The number of turns in the primary coil of a transformer is 200 and the number of turns in the secondary coil is 10. If 240 blank v o l t blank A Cis applied to the primary, the output from the secondary will be

    Physics-General
    General
    Maths-

    If the curves x to the power of 2 end exponent equals 9 A left parenthesis 9 minus y right parenthesis and x to the power of 2 end exponent equals A left parenthesis y plus 1 right parenthesis intersect orthogonally, then the value of A is

    If the curves x to the power of 2 end exponent equals 9 A left parenthesis 9 minus y right parenthesis and x to the power of 2 end exponent equals A left parenthesis y plus 1 right parenthesis intersect orthogonally, then the value of A is

    Maths-General
    parallel
    General
    Maths-

    The value of c in Lagrange’s mean value theorem for the function f open parentheses x close parentheses equals x left parenthesis x minus 2 right parenthesis when x element of open square brackets 12 close square brackets comma is

    The value of c in Lagrange’s mean value theorem for the function f open parentheses x close parentheses equals x left parenthesis x minus 2 right parenthesis when x element of open square brackets 12 close square brackets comma is

    Maths-General
    General
    Maths-

    A sphere of radius 100 mm shrinks to radius 98 mm, then the approximate decrease in its volume is

    A sphere of radius 100 mm shrinks to radius 98 mm, then the approximate decrease in its volume is

    Maths-General
    General
    Maths-

    The set of all values of a for which the function
    f open parentheses x close parentheses equals open parentheses fraction numerator square root of a plus 4 end root over denominator 1 minus a end fraction minus 1 close parentheses x to the power of 5 end exponent minus 3 blank x plus log invisible function application 5

    Decreases for all real x is

    The set of all values of a for which the function
    f open parentheses x close parentheses equals open parentheses fraction numerator square root of a plus 4 end root over denominator 1 minus a end fraction minus 1 close parentheses x to the power of 5 end exponent minus 3 blank x plus log invisible function application 5

    Decreases for all real x is

    Maths-General
    parallel
    General
    Maths-

    Let f open parentheses x close parentheses equals x to the power of 3 end exponent minus 6 x to the power of 2 end exponent plus 12 x minus 3. Then at x equals 2 comma blank f left parenthesis x right parenthesis has

    Let f open parentheses x close parentheses equals x to the power of 3 end exponent minus 6 x to the power of 2 end exponent plus 12 x minus 3. Then at x equals 2 comma blank f left parenthesis x right parenthesis has

    Maths-General
    General
    Maths-

    If a particle moving along a line follows the law t equals a s to the power of 2 end exponent plus b s plus c, then the retardation of the particle is proportional to

    If a particle moving along a line follows the law t equals a s to the power of 2 end exponent plus b s plus c, then the retardation of the particle is proportional to

    Maths-General
    General
    Maths-

    A particle moves along a straight line with the law of motion given by s to the power of 2 end exponent equals a t to the power of 2 end exponent plus 2 b t plus c. then the acceleration varies are

    A particle moves along a straight line with the law of motion given by s to the power of 2 end exponent equals a t to the power of 2 end exponent plus 2 b t plus c. then the acceleration varies are

    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.