A Boeing 737 with a wingspan of 40 m flies due south at a constant altitude in the northern hemisphe

Question

A Boeing 737 with a wingspan of 40 m flies due south at a constant altitude in the northern hemisphere at 263 ms^-1. If the vertical component of the Earth’s magnetic field in that area is 2 x 10^-5 T, calculate the induced emf between the wingtips.

Answer 1

A Boeing 737 with a wingspan of 40 m flies due south at a constant altitude in the northern hemisphere at 263 ms^-1. If the vertical component of the Earth’s magnetic field in that area is 2 x 10^-5 T, calculate the induced emf between the wingtips.

0.1 V
0.2 V ✓
0.3 V
0.5 V

Explanation

The wings cut the vertical part of the Earth’s field. Induced emf = Blv.

emf = 2 × 10⁻⁵ × 40 × 263 ≈ 0.21 V.

The closest option is 0.2 V.

Was this explanation helpful?

Something wrong or missing? Tell us — we read every report and fix issues fast.