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A circular coil of radius 8.0 cm and 20 turns is rotated about its vertical diameter with an angular speed of 50 rad s-1 in a uniform horizontal magnetic field of magnitude 3.0×10-2 T. Obtain the maximum and average emf induced in the coil. If the coil forms a closed loop of resistance 10?, calculate the maximum value of current in the coil. Calculate the average power loss due to Joule heating. Where does this power come from?
A transformer with 120. turns in its secondary supplies 12. volts at 220. ma to a toy train. The primary is connected across a 120. V wall outlet. What power is delivered by the wall outlet
Spiderman, whose mass is 72.0 kg, is dangling on the free end of a 11.4-m-long rope, How much work was done by the gravitational force on Spiderman in this maneuver
One sphere is negatively charged, with net charge -2.25 mu C, and other sphere is positively charged, with net charge 4.00 mu C. The charge is uniformly distributed within the volume of each sphere.
A train is traveling up a 4.6° incline at a speed of 3.27 m/s when the last car breaks free and beginsto coast without friction. How far did the last car travel before momentarily coming to rest
A hypodermic syringe contains a medicine with the density ofwater. The barrel of the syringe has a cross-sectional area A= 2.50x 10^-5 m^2, Determine the speed of the medicine as it leaves theneedle's tip
An initially uncharged 4.53x10-6 F capacitor and a 7250 ohm resistor are connected in series, Calculate the circuit's time constant
a carnival ride consists of a vertical cylindar, radius 2 m. When it revolves it pins people to its walls, What is the required period of revolution
Consider a tennis ball cannon people use to practice their game: what is the approximate wavelength of these tennis balls
which describes the electric potential and the electric field at a point due to a negatively charged particle?a the
Suppose V rms = 240 V for an alternating current power source. What is the amplitude of the voltage for the source
When 165 V is applied across a wire that is 14 m long and has a 0.31 mm radius, Find the resistivity of the wire
A stone has a mass of 4.00 x10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.76.
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