JEE Mains · Physics · STD 12 -6. Electromagnetic induction
Four identical long solenoids \(A, B, C\) and \(D\) are connected to each other as shown in the figure. If the magnetic field at the center of \(A\) is \(3\, T\), the field at the center of \(C\) would be........... \(T\) (Assume that the magnetic field is confined with in the volume of respective solenoid).
- A \(12\)
- B \(6\)
- C \(9\)
- D \(1\)
Answer & Solution
Correct Answer
(D) \(1\)
Step-by-step Solution
Detailed explanation
\(\phi \propto i\) \(\Rightarrow B \propto i\) so, field at centre of \(C =\frac{3}{3}=1 T\)
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