To calculate the potential difference (P.D) between the wing tips of the aircraft, we can use the formula:
P.D = B × v × L
where:
- P.D is the potential difference,
- B is the magnetic field strength (vertical component of Earth's magnetic field),
- v is the velocity of the aircraft,
- L is the wing span of the aircraft.
Given:
- Wing span of the aircraft (L) = 56 m
- Velocity (v) = 900 km/hr = 900,000 m/hr = 900,000/3600 m/s = 250 m/s
- Magnetic field strength (B) = 0.4 m Wb/m²
Substituting these values into the formula:
P.D = (0.4 m Wb/m²) × (250 m/s) × (56 m)
P.D = 0.4 × 250 × 56 m² Wb
P.D = 5600 m² Wb
Therefore, the potential difference between the wing tips of the aircraft is 5600 m² Wb.