How does the direction of the current in the loop compared to the electric field?
How does the direction of the current in the loop compare to the electric field? … Currents in wires are carried by moving electrons, which are negatively charged. Therefore, the electrons move in the opposite direction as the arrow on the wire.
How does direction of current affect magnetic field?
The magnetic field produced by an electric current is always oriented perpendicular to the direction of the current flow. … Similar to the situation with electric field lines, the greater the number of lines (or the closer they are together) in an area the stronger the magnetic field.
How does the electric field change as the magnet approaches the loop?
Figure 20.34 The bar magnet moves downward with respect to the wire loop, so that the number of magnetic field lines going through the loop decreases with time. This causes an emf to be induced in the loop, creating an electric current.
In which direction is the current flowing in which direction is the magnetic field?
If you are facing towards current flowing direction ,the direction of magnetic field is in clockwise direction.
What is the direction of the current in the wire?
The direction of an electric current is by convention the direction in which a positive charge would move. Thus, the current in the external circuit is directed away from the positive terminal and toward the negative terminal of the battery. Electrons would actually move through the wires in the opposite direction.
How do you know the direction of current in a wire?
Using the right hand rule for the conventional current in the wire, the right thumb is pointed along the wire pointing to the left. At point the fingers curl around and point up, out of the screen. This can be verified by putting the thumb in the direction of current anywhere in the circuit.
How do you describe and determine the direction of a magnetic field produced by an electric current?
Another version of the right hand rules can be used to determine the magnetic field direction from a current—point the thumb in the direction of the current, and the fingers curl in the direction of the magnetic field loops created by it.
In what direction does the magnetic moment of this current carrying loop point?
For the middle loop, the magnetic dipole moment makes an angle θ with the magnetic field vector, so that the torque on that loop has a magnitude given by τ=μBsinθ, and points into the page (clockwise rotation).
How do you find the direction of a magnetic field in a circular loop?
The direction of magnetic field of every section of the circular loop can be found by using the right hand thumb rule.
- At the centre of the circular loop, The magnetic field lines are straight.
- Each segment of circular loop carrying current produces magnetic field lines in the same direction with in the loop.
What is the direction of the induced current in the loop?
The induced current produces induced emf opposing the increase in flux. Therefore, a counterclockwise current is induced in the loop to increase the flux. The direction of the induced current in the circular loop is counterclockwise.
What is the direction of the current induced in the coil if the current in the wire increases?
Since the resultant magnetic flux in the coil due to wire is into the plane of the coil, as current in the wire increases, the induced current in the coil will be to oppose the flux due to the wire. Hence the direction of the induced current in the coil will be counter clock wise.
What is the direction of the induced current in the wire loop as seen from the left when the switch is open?
a counterclockwise) current induced in the loop (as seen from the left). The switch on the electromagnet, initially open, is closed. What is the direction of the induced current in the wire loop (as seen from the left)? The battery is in the reverse direction.
In which direction does an electric current flow in a circuit?
Electric current always flows from negative terminal to positive terminal (lower potential to higher potential) in an electric circuit.
How might a loop of wire carrying a current be used as a compass?
If one end of the wire aligns toward the earth’s geographic north, it will be the north pole of the wire and the south pole will be that end which aligns with the earth’s geographic south. This way, such a current carrying wire can act as a compass and north and south directions can be distinguished.
How is the direction of conventional current determined?
The direction of the conventional current is from positive to the negative termianl of the battery. Where as the electrons flow from the negative terminal of the battery to the positive terminal of the battery which is exactly opposite to the conventional direction.