A rod of length 2 m slides with a speed of 5 ms-1 on a rectangular conducting frame as shown in figure. There exists a uniform magnetic filed of 0.04 T perpendicular to the plane of the figure. If the resistance of the rod is 3 Ω. The current through the rod is

Question

A rod of length 2 m slides with a speed of 5 ms-1 on a rectangular conducting frame as shown in figure. There exists a uniform magnetic filed of 0.04 T perpendicular to the plane of the figure. If the resistance of the rod is 3 Ω. The current through the rod is (A) 75 mA (B) 133 mA (C) 0.75 A (D) 1.33 A

Tardigrade Admin · Accepted Answer

We know that the current, i = BIv / R =(0.04 × 2 × 5) / 3=133 mA

Q. A rod of length $2 m$ slides with a speed of $5 m s^{- 1}$ on a rectangular conducting frame as shown in figure. There exists a uniform magnetic filed of $0.04 T$ perpendicular to the plane of the figure. If the resistance of the rod is $3Ω$ . The current through the rod is

75 mA

133 mA

0.75 A

1.33 A

We know that the current,
$i = B I v / R = (0.04 \times 2 \times 5) /3 = 133 m A$

Q. A rod of length 2m slides with a speed of 5ms−1 on a rectangular conducting frame as shown in figure. There exists a uniform magnetic filed of 0.04T perpendicular to the plane of the figure. If the resistance of the rod is 3Ω. The current through the rod is