AP EAMCET · PHYSICS · Electromagnetic Induction
Consider the situation shown in the figure. The wire \(A B\) is sliding on the fixed rails with a constant velocity. If the wire \(A B\) is replaced by semicircular wire, the magnitude of the induced current will
- A increase
- B remain the same
- C decrease
- D increase or decrease depending whether the semicircle bulges towards the resistance or away from it
Answer & Solution
Correct Answer
(B) remain the same
Step-by-step Solution
Detailed explanation
Magnitude of induced current in the wire \(A B\) is given as \[ I=\frac{B v l \sin \theta}{R} \] Here, \[ \begin{aligned} & \theta=90^{\circ} \\ & I=\frac{B v l}{R} \end{aligned} \] \[ \therefore \] When wire \(A B\) is replaced by semicircular wire, then neither \(l\) nor…
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