Advertisements
Advertisements
प्रश्न
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
Advertisements
उत्तर
a circular coil
The diagram represents a magnetic field caused by a current-carrying conductor which is a circular coil.
APPEARS IN
संबंधित प्रश्न
The magnetic field inside a long straight solenoid-carrying current ______.
State Fleming’s left-hand rule.
When is the force experienced by a current-carrying conductor placed in a magnetic field largest?
State qualitatively the effect of inserting an iron core into a current-carrying solenoid.
State whether the following statement is true or false:
The magnetic field inside a long circular coil carrying current well be parallel straight lines.
What is the shape of a current-carrying conductor whose magnetic field pattern resembles that of a bar magnet?
Draw the magnetic lines of force due to a circular wire carrying current.
State and explain the Clock face rule for determining the polarities of a circular wire carrying current.
For Fleming's left-hand rule, write down the three things that are 90° to each other, and next to each one write down the finger or thumb that represents it.
The force exerted on a current-carrying wire placed in a magnetic field is zero when the angle between the wire and the direction of magnetic field is:
45°
60°
90°
180°
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
A current flows in a wire running between the S and N poles of a magnet lying horizontally as shown in the figure below:
The force on the wire due to the magnet is directed ____________.
Which of the following factors affect the strength of force experience by current-carrying conduct in a uniform magnetic field?
For a current in a long straight solenoid N- and S-poles are created at the two ends. Among the following statements, the incorrect statement is
What does the direction of thumb indicate in the right-hand thumb rule. In what way this rule is different from Fleming’s left-hand rule?
Observe the given figure of Fleming's Left Hand Rule and write the labels of 'A' and 'B':
Which of the following pattern correctly describes the magnetic field around a long straight wire carrying current?
Assertion (A): A current carrying straight conductor experiences a force when placed perpendicular to the direction of magnetic field.
Reason (R): The net charge on a current carrying conductor is always zero.
A copper conductor is placed over two stretched copper wires whose ends ate connected to a D.C. supply as shown in the diagram.
- What should be the magnetic poles at the points A and B lying on either side of the conductor to experience the force in the upward direction?
- Name the law used to find these polarities.
