Advertisements
Advertisements
Question
In the simple electric motor of figure given below, the coil rotates anticlockwise as seen by the eye from the position X when current flows in the coil
Is the current flowing clockwise or anticlockwise around the coil when viewed from above?
Solution
The current is flowing in clockwise direction around the coil when viewed from above.
Using Fleming's left-hand rule, the direction of current can be found.
APPEARS IN
RELATED QUESTIONS
State Fleming's left hand rule.
Name and state the rule to determine the direction of magnetic field around a straight current-carrying conductor.
The magnetic field lines in the middle of the current-carrying solenoid are?
(a) circles
(b) spirals
(c) parallel to the axis of the tube
(d) perpendicular to the axis of the tube
The front face of a circular wire carrying current behaves like a north pole. The direction of current in this face of circular wire is:
(a) clockwise
(b) downwards
(c) anticlockwise
(d) upwards
Which way does the wire in the diagram below tend to move?
force experienced by a current-carrying straight conductor placed in a magnetic field which is perpendicular to it.
Two coils A and B of insulated wire are kept close to each other. Coil A is connected to a galvanometer while coil B is connected to a battery through a key. What would happen if:
the current is stopped by removing the plug from the key?
Explain your answer mentioning the name of the phenomenon involved.
A flat coil ABCD is freely suspended between the pole of U-shaped permanent magnet with the plane of coil parallel to the magnetic field.
What happens when a current is passed in the coil?
i) Which principle is explained in this figure?
ii) Which rule is used to find out the direction of a force in this principle?
iii) In which machine this principle is used? Draw a diagram showing working of that machine
The strength of magnetic field around a current-carrying conductor is ____________.
