Magnetic Field Due to Circular Current Carrying Conductor

Q.

Give any two applications of Faradays law of Induction in daily life.

Q. A circular coil carrying a certain current produces a magnetic B0 at its centre. The coil is now rewound so as to have 3 turns and the same current is passed through it.the new magnetic field at the center is ??

Q.

Polarity of magnetic filed of a solenoid carrying current

Q. A copper wire of resistance 10 ohm is in the form of a perfect circle. Two points A and B on it are connected to a battery of emf 5 V and internal resistance 0.5 ohm . The two segments of the circle have lengths in the ratio 2 : 3. The net magnetic induction at the centre of the circle is

Q. 36.A conducting wire of length l is turned in the form of a circular coil and I current is passed through it. When this coil is kept in a uniform magnetic field the torque on it will be maximum if number of turns in the coil is ??

Q.

The diagram given below represents magnetic field caused by a current-carrying conductor which is :

(a) a long straight wire (b) a circular coil

(c) a solenoid (d) a short straight wire

Q. 147. A current carrying circular loop lies on a smooth horizontal plane. Can a uniform magnetic field be set up in such a manner that the loop turns around itself (i.e. , turns about the vertical axis).

Q. 2. A rectangular loop with current I has dimension as shown in figure . Find the magnetic flux through the infinite region to the right of line PQ

Q. 27. A wire of length l is bent in the form of a circular coil of some turns. A current i flows through the coil. The coil is placed in a uniform magnetic field B .the maximum torque on the coil can be

Q. In the figure shown below, current is flowing in the anticlockwise direction in a loop of wire. The part of the loop that faces towards you is ___ pole.

1. east
2. west
3. north
4. south

Q. Radius of current carrying coil is R.If fractional decreases in field value w.r.t. to centre of coil for a near by axial point is 1%, then find axial postion of that point.

Q. describe an activity with diagram to draw magnetic field lines due to a current carrying circular loop

Q. 115.A square coil of edge L having n turns carries a current i. it is kept on a smooth horizontal plate a uniform magnetic field B exists in a direction parallel to an edge the total mass of the coil is M what should be the minimum value of B for which the coil will start tipping over?

Q.

Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right hand rule to find out the direction of the magnetic field inside and outside the loop. [5 MARKS]

Q.

There is a straight wire carrying current as shown in the figure. What is the direction of the magnetic field around the wire when the reference point is above the wire?

1. Anti-clockwise direction along the circle encircling the wire.

2. In the direction of the current.

3. Opposite to the direction of the current.

4. Clockwise direction along the circle encircling the wire.

Q. Why magnetic field lines follow curve path ?

Q. An infinitely long wire bent into shape as shown in the figure carries a steady current I . If the curved wire is along the curve y² = 4ax , then magnetic field at point P(a, 0) would be

Q.

what is the gauss law for magnetism.

Q. Same current I is flowing in three infinitely long wire along x y z direction The magnetic field at a point (0, 0, -a) would be

Q. A circular coil of a certain current produces a magnetic field B0 at its centre. The coil is rewound so as to have 3 turns and the same current is passed through it. What is the new magnetic field at the centre?

Q. The ratio of the magnetic field at the centre of a current carrying circular wire and the magnetic field at the centre of a square coil, made from the same length of wire will be

Q. A long wire carries a steady current , it is bent into a circle of one turn and magnetic field at center of coil is B. It is then bent into a circular loop of n turns. The magnetic field at center of coil will be?

Q. circular coils 1 and 2 are made from the same wire but the radius of the 1st coil is twice that of 2nd coil. What is the ratio of potential difference applied across them so that the magnetic field attheir centres is the same?

Q. Write any five properties of magnetic field lines that are formed around a circular loops??

Q.

In the figure shown below, current is flowing in the anticlockwise direction in a loop of wire. The part of the loop that faces towards you has ___ pole.

Q.

Do a circular conductor with 5 turns produces more magnetic field than that of a 3 turn circular conductor, when equal current is passed?

Q.

Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right-hand rule to find out the direction of the magnetic field inside and outside the loop.

Q. In the given question, the magnetic field at the centre of the loop will be away from you.

1. True
2. False

Q.

Consider a circular loop of wire lying in the plane of the table. Let the current pass through the loop clockwise. Apply the right-hand rule to find out the direction of the magnetic field inside and outside the loop.

Q.

In the given question, the magnetic field at the center of the loop will be away from you.

1. True

2. False