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Consider an electromagnetic made from a solenoid, hooked to an EMF source. The current flowing through the solenoid is 10.0A The solenoid is 32cm long and has 16 turns.
(a) Indicate the direction of magnetic field.
(b) Indicate the location of the north and south pole of this magnet.
(c) Calculate the strength of the magnetic field inside the solenoid.
(d) What would the strength of the magnetic field be if an iron core( relative permeability, k=200) were at the center of the solenoid?
A 4.0mW laser beam has its electric field vertical. what's the power of the transmitted beam
A hydrogen atom consists of a single proton and a single electron. Experimentally it is found that it takes 13.6eV of energy to strip the electron from the proton. calculate the size of the hydrogen atom
A weight lifter lifts a 360-N set of weights from ground level to a position over his head, a vertical distance of 2.05 m. How much work does the weight lifter do
The Mariana trench is located in the Pacific Ocean at a depth of about 11 000 m below the surface of the water. For comparison, determine the weight of a jetliner whose mass is 6.04 × 105 kg
A person is riding a bicycle, and its wheels have an angular velocity of +23.0 rad/s. What is the angular acceleration of each wheel
A ball is attached to the spring and allowed to come to rest. It is then pulled down 3.0 cm and released. If the ball makes 55 oscillations in 20 s, what are its mass and maximum speed
A parallel-plate capacitor has 3.95 cm2 plates that are separated by 4.29 mm with air between them. how much energy does it store
A patient has a near point of 45.0 cm and far point of 85.0 cm. Calculate the power lens needed to correct the patient's far point
A very long, straight solenoid with a cross-sectional area of 6.00cm squared is wound with 40 turns of wire per centimeter, What is the average induced emf in the secondary coil
Given that the radius of the Moon is roughly one-quarter that of the Earth, find the mass of the Moon in terms of the mass of the Earth
A cylinder of brass has a diameter of 3mm and a length of 100mm. What is the stress in the cylinder
A horizontal water main with a cross-sectional area of 186 cm2 necks down to a pipe of area 57.8 cm2. Determine the flow rate through the system
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