two circular coils A and B are placed closed to each other.if the current in the coil A is changed , will some current be induced in the coil B/ give reason
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Answered by
1
Here you go dude!
1- Take 2 different coils of copper wire having large no. of turns. Insert them over a non-conducting cylindrical roll.
2- Connect the coil A having large no. of turns, in series with battery and a plug key. Also connect the coil B with a galvanometer.
3- Plug in the key and observe the galvanometer. You will observe that the needle of galvanometer instantly jumps to one side and just as quickly returns to zero, indicating a momentary current in coil B.
4- Disconnect coil A from the battery. You will observe that the needle momentarily moves but to the other side. It means that the current flows in opposite direction in coil B.
From these observation we can conclude that potential difference is induced in coil B whenever the current through the coil A is changed. Coil A is also called primary coil and coil B is also called secondary coil. As the current in the first coil changes the magnetic field associated with it also changes. Hence the change in magnetic field lines associated with the secondary coil is the cause of induced current in it. This process by which a changing magnetic field in a conductor induces a current in another conductor is called electromagnetic induction.
Hope this helps you..!!
Please mark as the BRAINLIEST....!!!!
1- Take 2 different coils of copper wire having large no. of turns. Insert them over a non-conducting cylindrical roll.
2- Connect the coil A having large no. of turns, in series with battery and a plug key. Also connect the coil B with a galvanometer.
3- Plug in the key and observe the galvanometer. You will observe that the needle of galvanometer instantly jumps to one side and just as quickly returns to zero, indicating a momentary current in coil B.
4- Disconnect coil A from the battery. You will observe that the needle momentarily moves but to the other side. It means that the current flows in opposite direction in coil B.
From these observation we can conclude that potential difference is induced in coil B whenever the current through the coil A is changed. Coil A is also called primary coil and coil B is also called secondary coil. As the current in the first coil changes the magnetic field associated with it also changes. Hence the change in magnetic field lines associated with the secondary coil is the cause of induced current in it. This process by which a changing magnetic field in a conductor induces a current in another conductor is called electromagnetic induction.
Hope this helps you..!!
Please mark as the BRAINLIEST....!!!!
Answered by
2
Explanation:
Two circular coils A and B are placed close to each other. When the current in coil A is changed, the magnetic field associated with it also changes. As a result, the magnetic field around coil B also changes. This change in magnetic field lines around coil B induces an electric current in it. This is called electromagnetic induction.
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