Magnetic field due to current carrying conductor - class-XII
Description: magnetic field due to current carrying conductor | |
Number of Questions: 26 | |
Created by: Kalki Agrawal | |
Tags: electric charge and electric current electromagnetic forces electromagnetism physics electro-magnetism magnetic effects of current and magnetism effects of electric current magnetic effect of electric current moving charges and magnetism magnetic effects of electric current when current flows electricity and magnetism |
In a circular current-carrying conductor, if the current flows in the clockwise direction, the magnetic field direction is __________.
Consider an experiment where Electric current is flowing in a wire. It is observed that clockwise magnetic field is produced around the wire. A teacher decides to reverse the direction of source battery which results in reversal of electrical current. What will be the effect on magnetic field?
Axis of a solid cylinder of infinite length and radius $R$ lies along $y$-axis. It carries a uniformly distributed corrent I along +$y$ direction. Magnetic field at a point $(R/2,y,R/2)$ is
A current carrying circular loop of radius R is placed in the x-y plane with centre at the origin. Half of the loop with x > 0 is now bent so that it now lies in the $y-z$ plane.
Which of the following entities are closely associated to each other
Define Electromagnetism
Which of the following phenomenon can be related to electric current
The Magnetic effect of current was discovered by:
How can you determine direction of magnetic field lines around a current carrying conductor
One metal wire is kept in east-west direction. $I$ is the current flow due west. Then, due to magnetic field $\vec { { B } }$ of the earth on the wire is in the........ Direction.
The shape of a magnetic field lines around a straight current carrying conductor is.......
A loosely wound helix made of stiff wire is mounted vertically with the lower end just touching a dish of mercury when a current from the battery is started in the coil through the mercury
A moving charge produces
The magnetic lines of force due to straight current carrying conductor are:
What is the shape of a current-carrying conductor whose magnetic field pattern resembles that of a bar magnet?
The strength and direction of the magnetic field depends on ..........
Which of the following effects of current does not depend on the direction of current?
What inferences were drawn from Oersteds experiment?
The magnitude of current is ........ the magnitude of magnetic field
Which of the following observations are true for Hans Oersteds experiment?
a. When current passes through the wire the compass needle comes to rest in a direction along the Earths magnetic field.
b. When placed just above the wire, North Pole of the compass needle deflects towards the east when current is passes from A to B.
c. When placed just below the wire, North Pole of the compass needle deflects towards the east when current is passes from B to A i.e. on reversing the direction of current
When current passes through the circuit a compass needle rests in which direction (with respect to the Earth)?
State whether True or False :
Who first discovered the relationship between electricity and magnetism?
Chose the correct statement from the following:
Two long parallel wires A and B separated by a distance d, carry currents $i _1$ and $i _2$ respectively in the same direction. Write the following steps in a sequential order to find the magnitude of the resultant magnetic field at a point 'P', which is between the wires and is a distance '$x$' from the wire A.
(All the physical quantities are measured in SI units)
(a) Note the given values of $i _1, i _2$, $d$ and $x$.
(b) Write the formula to find the magnetic field due to a long straight current carrying wire i.e. $\displaystyle B=\frac{\mu _0 i}{2 \pi r}$
(c) Find the directions of the magnetic field at 'P' due to two wires A and B, using right hand thumb rule.
(d) Determine the magnetic field at P due to wire A, using $B _1 \displaystyle = \frac{\mu _0 i _1}{2 \pi x}$
(e) If the directions of magnetic field are same, then the resultant magnitude is equal to the sum of $B _1$ and $B _2$.
(f) Determine the magnetic field $B _2$ due to wire B at point P, ie. $B _2 = \displaystyle \frac{\mu _o i _2}{2 \pi (d-x)}$
(g) If the directions of magnetic fields are opposite to each other, then the resultant magnitude is equal to the difference of $B _1$ and $B _2$.
Consider a region where both uniform electric and magnetic fields E and B are present both along the z-axis. A positively charged particle of charge and mass is released from the origin with an initial velocity ${{\text{V}} _e}\hat i$. Which of the following option(s) are correct?