An aeroplane is flying with a speed of 1000km/h. Calculate the e.m.f generated between the tips of the wings of the plane if the length of each wing is 20 m and vertical component of Earth's magnetic field is 3.1×10-5 weber/m2
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h) An aeroplane is flying with a speed of 1000km/h. Calculate the e.m.f generated between the tips of the wings of the plane if the length of each wing is 20 m and vertical component of Earth's magnetic field is 3.1×10-5 weber/m2
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- Force on a Wire: The magnetic force on a current-carrying wire in a magnetic field is the strongest when Group of answer choices A. the current is at a 180° angle with respect to the magnetic field lines. B. the current is perpendicular to the magnetic field lines. C. the current is in the direction opposite to the magnetic field lines. D. the current is at a 0° angle with respect to the magnetic field lines. E. the current is in the direction of the magnetic field lines.A hydroxide ion (OH−) in a glass of water has an average speed of about 600 m/s. A. Determine the magnitude of the electrical force between the hydroxide ion (charge -e) and a positive ion (charge +e) that is 1.0×10−8 m away (about the separation of 30 atoms). B. Determine the magnitude of the maximum magnetic force that Earth's 3.0×10−5 T magnetic field can exert on the ion.6. In the velocity selector, what should be the direction of a magnetic field so that the particle will travel upwards (in the +y direction) undeflected?
- 1. A wire runs from north to south a. A compass needle placed above the wire points with its north pole toward the east. In what direction is the current flowing? b. If a compass is placed underneath the wire, in which direction will its needle point? 2. What will be the direction of the magnetic field if the current is due upward? 3. How does the magnitude of the current passing through the conductor affect the magnetic field?If a charged particle initially kept at rest experiences acceleration, which of the following statements is correct? I. The electric field must not be zero. II. The magnetic field must not be zero. III. The electric field may or may not be zero. IV. The magnetic field may or may not be zero.