A Steam Turbine Runs A Generator At A Power Plant. The Number Of Turns In The Coil, N, Is 101. The Magnetic Field, B, Is 3.15 X 10? Tesla. The Area Of The Coil Is 15.0 Meter'. The Frequency, F, Is 60 Hertz. Find The Instantaneous Emf, Dt), At 1/240 Of A Second. 2. Explain Faraday's Law. 3. In Faraday's Law, Electromagnetic Induction Is A Rate Of Change.

 

1. A steam turbine runs a generator at a power plant. The number of turns in the coil, N, is 101. The magnetic field, B, is 3.15 x 102 Tesla. The area of the coil is 15.0 meter. The frequency, f, is 60 Hertz.. Find the instantaneous emf, (t), at 1/240 of a second. 2. Explain Faraday's Law. 3. In Faraday's Law, electromagnetic induction is a rate of change. In force, the quantity changing is momentum. What quantity is changing in electromagnetic induction? 4. What is light? 5. Explain what it means to focus light. 6. State the law of reflection. 7. What is index of refraction? 8. State Snell's Law (the law of refraction). 9. Visible light passes through an aqueous solution of trichloroacetic acid at a speed of 2.2446 x 10 m/s. Using the value 2.99792 x 10" m/sec for the speed of light, calculate the index of refraction of this solution? 10. If a thin lens focuses light from an object 4.00 meters in front of it onto a screen 8.00 meters behind the lens, what is the focal length of the lens?