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प्रश्न
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.
उत्तर
In this case, galvanometer pointer moves to other side. This shows that the direction of induced current is reversed and then quickly returned to zero.
This phenomenon is based on the principle of electromagnetic induction.
संबंधित प्रश्न
Which of the following property of a proton can change while it moves freely in a magnetic field? (There may be more than one correct answer.)
Name the rule for finding the direction of magnetic field produced by a straight current-carrying conductor.
What is the shape of a current-carrying conductor whose magnetic field pattern resembles that of a bar magnet?
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
In a statement of Fleming's left-hand rule, what do the following represent?
(a) direction of centre finger.
(b) direction of forefinger.
(c) direction of thumb.
State Fleming's left handle rule.
Write Fleming’s left hand rule.
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':
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.
