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Question
A 664-turn circular-loop coil 11.2 cm in diameter is initially aligned so that its axis is parallel to Earth's magnetic field. In 3.77 ms the coil is flipped so that its axis is perpendicular to Earth's magnetic field.
If the average voltage of 0.214 V is thereby induced in the coil, what is value of Earth's magnetic field at that location?
Answer in units of µT
When coil of a motor is rotating at highest speed, the current in the windings is 6.1 A. When motor is first turned on, the current in the winding is 13 A and the voltageis 114 V.
Find out the resistance of the windings.
Answer in units of Ω
Find out the back emf of the coil at maximum speed.
Answer in units of V
Analysis of Physics, Two pistons push down on the fluid filling two cylinders connected by a narrow hose, as shown in the figure. The area A1 is 1 square inch, and the area A2 is 10 square inches
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question1on a humid day the electric field of 2.00times104 nc is enough to produce sparks about an inch long. assume
A pipe open at both ends has a fundamental frequency of 120 Hz. what is the fundamental frequency of this pipe
Suppose now that the apparatus is sealed, and the temperature rises to 40.0o C. Find the pressure inside the apparatus now
A car is traveling at 95.0 km/hr when it collides with a stone wall. The car comes to rest after the first 30.0 cm of the car is crushed. what would the average force acting on the driver
A beam of light is incident from air on the surface of a liquid. If the angle of incidence is 29.5°, find the critical angle for the liquid when surrounded by air
A cube of metal has a mass of 0.569 kg and measures 3.09 cm on a side. Calculate the density and identify the metal
A golfer, putting on a green, requires three strokes to "hole the ball." During the first putt, the ball rolls 4.0 m due east. For the second putt, the ball travels 3.1 m at an angle 20° north of east. The third putt is 0.50 m due north. What disp..
A power station with an efficiency of 0.5 generates 10^8W of electric power and dissipates 1.00 x10^8 W of thermal energy to the cooling water that flows through it.
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