1, Find the induced emf, when the current in a 48.0 mH inductor increases from 0 to 535 mA in 15.5ms 2, An ac generator with an rms voltage 110 V is connected in series with a 35 Ohms resistor and 11 micro Farad capacitor, the rms current in the circuit is 1.2 A. What are (a) the impedance (b) capacitive reactance of the circuit (c) What is the frequency of the generator 3, A person 1.8m tall stands 0.86m from a reflecting globela) if the diameter of globe is 18 cm, where is the image of the person (b) How large is the image of the person. 4, The barrel of a compound microscope is 15 cm long. The specimen in mounted 1.0 cm from the objective, the eye-piece has focal length of 5.0 cm. What is the focal length of the objective lens. 5, A metal rod 0.95 m long moves with a speed of 2.4 m/s normal to the magnetic field, if the induced emf between the ends of the rod is 0.65 V, what is the strength of the magnetic field. 6, The capacitive reactance of a capacitor at 60.0 Hz is 105 Ohms. At what frequency its capacitive reactance is 72.5 Ohms