Physics-
General
Easy

Question

Two insulated rings, one of slightly smaller diameter than the other are suspended along their common diameter as shown. Initially the planes of the rings are mutually perpendicular. When a steady current is set up in each of them

  1. The two rings rotate into a common plane    
  2. The inner ring oscillates about its initial position    
  3. The inner ring stays stationary while the outer one moves into the plane of the inner ring    
  4. The outer ring stays stationary while the inner one moves into the plane of the outer ring    

The correct answer is: The two rings rotate into a common plane

Related Questions to study

General
physics-

A metallic block carrying current I is subjected to a uniform magnetic induction Error converting from MathML to accessible text. as shown in the figure. The moving charges experience a force Error converting from MathML to accessible text. given by ........... which results in the lowering of the potential of the face ........ Assume the speed of the carriers to be v

A metallic block carrying current I is subjected to a uniform magnetic induction Error converting from MathML to accessible text. as shown in the figure. The moving charges experience a force Error converting from MathML to accessible text. given by ........... which results in the lowering of the potential of the face ........ Assume the speed of the carriers to be v

physics-General
General
physics-

A conducting loop carrying a current I is placed in a uniform magnetic field pointing into the plane of the paper as shown. The loop will have a tendency to

A conducting loop carrying a current I is placed in a uniform magnetic field pointing into the plane of the paper as shown. The loop will have a tendency to

physics-General
General
physics-

Wires 1 and 2 carrying currents i subscript 1 end subscript and i subscript 2 end subscriptrespectively are inclined at an angle theta to each other. What is the force on a small element dl of wire 2 at a distance of r from wire 1 (as shown in figure) due to the magnetic field of wire1

Wires 1 and 2 carrying currents i subscript 1 end subscript and i subscript 2 end subscriptrespectively are inclined at an angle theta to each other. What is the force on a small element dl of wire 2 at a distance of r from wire 1 (as shown in figure) due to the magnetic field of wire1

physics-General
parallel
General
physics-

A and B are two conductors carrying a current i in the same direction. x and y are two electron beams moving in the same direction

A and B are two conductors carrying a current i in the same direction. x and y are two electron beams moving in the same direction

physics-General
General
physics-

An elastic circular wire of length l carries a current I. It is placed in a uniform magnetic field stack B with rightwards arrow on top (Out of paper) such that its plane is perpendicular to the direction of stack B with rightwards arrow on top. The wire will experience

An elastic circular wire of length l carries a current I. It is placed in a uniform magnetic field stack B with rightwards arrow on top (Out of paper) such that its plane is perpendicular to the direction of stack B with rightwards arrow on top. The wire will experience

physics-General
General
physics-

For a positively charged particle moving in a x-y­ plane initially along the x-axis, there is a sudden change in its path due to the presence of electric and/or magnetic fields beyond P. The curved path is shown in the x-y plane and is found to be non-circular. Which one of the following combinations is possible

For a positively charged particle moving in a x-y­ plane initially along the x-axis, there is a sudden change in its path due to the presence of electric and/or magnetic fields beyond P. The curved path is shown in the x-y plane and is found to be non-circular. Which one of the following combinations is possible

physics-General
parallel
General
physics-

A non-planar loop of conducting wire carrying a current I is placed as shown in the figure. Each of the straight sections of the loop is of length 2a. The magnetic field due to this loop at the point P (a,0,a) points in the direction

A non-planar loop of conducting wire carrying a current I is placed as shown in the figure. Each of the straight sections of the loop is of length 2a. The magnetic field due to this loop at the point P (a,0,a) points in the direction

physics-General
General
physics-

An infinitely long conductor PQR is bent to form a right angle as shown. A current I flows through PQR The magnetic field due to this current at the point M is H1. Now another infinitely long straight conductor QS is connected at Q so that the current is I/2 in QR as well as in QS, The current in PQ remaining unchanged. The magnetic field at M is now H subscript 2. end subscriptThe ratio H subscript 1 end subscript divided by H subscript 2 end subscript is given by

An infinitely long conductor PQR is bent to form a right angle as shown. A current I flows through PQR The magnetic field due to this current at the point M is H1. Now another infinitely long straight conductor QS is connected at Q so that the current is I/2 in QR as well as in QS, The current in PQ remaining unchanged. The magnetic field at M is now H subscript 2. end subscriptThe ratio H subscript 1 end subscript divided by H subscript 2 end subscript is given by

physics-General
General
physics-

A cell is connected between the points A and C of a circular conductor ABCD of centre O with angle AO C equals 6 0 to the power of o end exponent. If B subscript 1 end subscript and B subscript 2 end subscript are the magnitudes of the magnetic fields at O due to the currents in ABC and ADC respectively, the ratio fraction numerator B subscript 1 end subscript over denominator B subscript 2 end subscript end fraction is

A cell is connected between the points A and C of a circular conductor ABCD of centre O with angle AO C equals 6 0 to the power of o end exponent. If B subscript 1 end subscript and B subscript 2 end subscript are the magnitudes of the magnetic fields at O due to the currents in ABC and ADC respectively, the ratio fraction numerator B subscript 1 end subscript over denominator B subscript 2 end subscript end fraction is

physics-General
parallel
General
physics-

The magnetic field at the centre of a circular coil of radius r is pi times that due to a long straight wire at a distance r from it, for equal currents. Figure here shows three cases : in all cases the circular part has radius r and straight ones are infinitely long. For same current the B field at the centre P in cases 1, 2, 3 have the ratio

The magnetic field at the centre of a circular coil of radius r is pi times that due to a long straight wire at a distance r from it, for equal currents. Figure here shows three cases : in all cases the circular part has radius r and straight ones are infinitely long. For same current the B field at the centre P in cases 1, 2, 3 have the ratio

physics-General
General
physics-

The voltage gain of the following amplifier is

The voltage gain of the following amplifier is

physics-General
General
physics-

The magnetic field in the cylindrical region shown in figure increases at a constant rate of 20 mT/sec. Each side of the square loop ABCD has a length of 1 cm and resistance of 4W. Find the current in the wire AB if the switch S is closed

The magnetic field in the cylindrical region shown in figure increases at a constant rate of 20 mT/sec. Each side of the square loop ABCD has a length of 1 cm and resistance of 4W. Find the current in the wire AB if the switch S is closed

physics-General
parallel
General
physics-

A pair of parallel conducting rails lie at right angle to a uniform magnetic field of 2.0 T as shown in the fig. Two resistors 10 capital omega and 5 capital omega are to slide without friction along the rail. The distance between the conducting rails is 0.1 m. Then

A pair of parallel conducting rails lie at right angle to a uniform magnetic field of 2.0 T as shown in the fig. Two resistors 10 capital omega and 5 capital omega are to slide without friction along the rail. The distance between the conducting rails is 0.1 m. Then

physics-General
General
physics-

Two coils P and Q are placed co-axially and carry current I and I' respectively

Two coils P and Q are placed co-axially and carry current I and I' respectively

physics-General
General
physics-

An alternating voltage of 141.4V (rms) is applied to a vacuum diode as shown in the figure. The maximum potential difference across the condenser will be

An alternating voltage of 141.4V (rms) is applied to a vacuum diode as shown in the figure. The maximum potential difference across the condenser will be

physics-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.