SATHEE: Electromagnetic Induction and Alternating Current 1 Question 16

Electromagnetic Induction and Alternating Current 1 Question 16

16. Three identical closed coils $A, B$ and $C$ are placed with their planes parallel to one another. Coils $A$ and $C$ carry equal currents

as shown in figure. Coils $B$ and $C$ are fixed in position and coil $A$ is moved towards $B$ with uniform motion. Is there any induced current in $B$ ? If no, give reasons. If yes, mark the direction of the induced current in the diagram.

$(1982, 2 M)$

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Answer:

Correct Answer: 16. Yes, in the direction opposite to $A$ .

Solution:

Due to the current in $A$ , a magnetic field is from right to left. When $A$ is moved towards $B$ , magnetic lines passing through $B$ (from right to left) will increase, i.e. magnetic flux passing through $B$ will increase. Therefore, current will be induced in $B$ . The induced current will have such a direction that it gives a magnetic field opposite to that, passing through $B$ due to current in $A$ . Therefore, induced current in $B$ will be in opposite direction of current in $A$ .

Electromagnetic Induction and Alternating Current 1 Question 16

16. Three identical closed coils $A, B$ and $C$ are placed with their planes parallel to one another. Coils $A$ and $C$ carry equal currents

Answer:

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Electromagnetic Induction and Alternating Current 1 Question 16

16. Three identical closed coils A,B and C are placed with their planes parallel to one another. Coils A and C carry equal currents

Answer:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

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16. Three identical closed coils $A, B$ and $C$ are placed with their planes parallel to one another. Coils $A$ and $C$ carry equal currents