Recent questions in Physics

0 votes

0 answers

A multirange current meter can be constructed by using a galvanometer circuit as shown in Fig. We want a current meter that can measure 10mA, 100mA and 1A using a galvanometer of resistance 10Ω and that prduces maximum deflection for current of 1mA. Find S1, S2 and S3 that have to be

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Five long wires A, B, C, D and E, each carrying current I are arranged to form edges of a pentagonal prism as shown in Fig. Each carries current out of the plane of paper. What will be magnetic induction at a point on the axis O?

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Five long wires A, B, C, D and E, each carrying current I are arranged to form edges of a pentagonal prism as shown in Fig. Each carries current out of the plane of paper. What will be the field if current in one of the wires

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Five long wires A, B, C, D and E, each carrying current I are arranged to form edges of a pentagonal prism as shown in Fig. Each carries current out of the plane of paper. What if current in one of the wire (say) A is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

An element `vec(dl)= dxuarr` (where dx = 1 cm) is placed at the origin and carries a large current I = 10 Amp. What is the mag. field on the Y-axis at a distance of 0.5 meter

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

Two straight long conductors AOB and COD are perpendicular to each other and carry currents I1 and I2 . The magnitude of the mag. field at a point 'P' at a distance 'a' from the point 'O' in a direction perpendicular to the plane ABCD

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

`BrarrR` graph. The mag. field B at a distance r from a long straight wire carrying a current varies with r as shown in

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A current path shaped as shown in figure produces a mag. field at point 'P', the centre of the arc BC. If the arc subtends an angle of `30^0` and the radius of the arc is 0.6 meter. What is the magnitude of the field at point P if the current is 3 AMP

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

As shown in figure a conductor carrying a current I. Find the magnetic field intensity at the point

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A length L of wire carries a steady current 1. It is bent first to form a coil of 1 turn. The same length is now bent more sharply to give a double loop of smaller radius. The magnetic field at the centre caused by the same current

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

If a long hollow copper pipe carries a direct current, the magnetic field associated with the current will be

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

The magnetic induction at a point P which is at a distance 4 cm from a long current carrying wire is `10^(-8 )` tesla. The field of induction at a distance 12 cm from the same current would be

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

The strength of the magnetic field at a point y near a long straight current carrying wire is B. The field at a distance y/2 will

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

The mag. field (B) at the centre of a circular coil of radius 'a', through which a current I flows

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A current of a 1 Amp is passed through a straight wire of length 2 meter. The magnetic field at a point in air at a distance of 3 meters from either end of wire and lying on the axis of wire will

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

If the strangth of the magnetic field produced at 10 cm away from a infinilely long straight conductor is `10^(-5)` tesla. The value of the current flowing in the conductor will be...............

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A long straight wire of radius 'a' carries a steady current I the current is uniformly distributed across its cross-section. The ratio of the magnetic field at a/2 and 2a is

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

At a distance of 10 cm from a long straight wire carrying current, the magnetic field is `4xx10^(-2)` . At the distance of 40 cm, the magnetic field will be

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

As shown in figure ABCD and CDEF planes are kept carrying current I. Each side of the plane is having length '2a'. The magnetic field due to ABCD and CDEF planes at the point P(a, 0, a) is in the

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

0 votes

0 answers

A He nucleus makes a full rotation in a circle of radius 0.8 meter in 2 sec. The value of the mag. field B at the centre of the circle will be ...................

asked Mar 20, 2022 in 12th Physics by varun (6.7k points)

Recent questions in Physics

Categories