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1) If a charge particle move in a straight line and there no other forces on it except possibly from a magnetic field, can you say with certainty that no magnetic field is present? Explain.2) In a velocity selector, the uniform magnetic field of 1.5 T is produced by a large magnet. Two parallel plates with a separation of 1.5 cm produce the perpendicular electric field. What voltage should be applied across the plates so that:a) A singly ionized ion traveling 8.0 x 104 m/s will pass through undeflected.b) A double ionized ion traveling at the same speed will pass through undeflected.3) A horizontal magnetic field of 1.0 x 10-4 T is at an angle of 30o to the direction of the current in a straight wire 75 cm long. If the wire carries a current of 15 A, what is the magnitude of the force on the wire?4) An electron travels at a speed of 2.0 x 10-4 m/s through a uniform magnetic field of strength 1.2 x 10-3 T. What is the magnitude of the magnetic force on the electron if its velocity and the magnetic field:a) Are perpendicularb) Make an angle of 45oc) Are paralleld) Are exactly opposite?5) A square loop of wire with sides of length 40 cm is in a uniform magnetic field perpendicular to its area If the field's strength is 100 mT an it decays to zero in 0.010 seconds:a) What is the magnitude and of the average emf induced in the loop?b) What happens to the emf is the side lengths are reduced by a factor of ½?6) The armature of an ac generator has 100 turns. Each turn is a rectangular loop measuring 8.0 cm by 12 cm. The generator has a sinusoidal voltage output with an amplitude of 24 V. If the magnetic field of the generator is 250 mT,a) With what frequency does the armature turn?b) If you double the B and cut in half, how does this affect the amplitude?7) An ac generator supplies 20 A at 440 V to a 10,000 V power line. If the step up transformer has 150 turns in its primary coil, how many turns are in the secondary coil?
A ray of light passing through air is incident on a piece of quartz (n=1.46) at an angle of 25 degrees. Calculate the deviation d of the ray as it emerges back into the air
A transformer is constructed that has 120 turns of wire on the primary side and 430 turns of wire on the secondary (load) side. what is the AC current measured on the secondary side
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a coaxial cable has an inner wire of radius 0.3 mm. with a linear charge density of 4.4e-08 c.m. surrounded by a
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A straight, non conducting plastic wire 9.50 centimeter long carries a charge density of 130 nC/m distributed uniformly along its length. Obtain the magnitude and direction of the electric field this wire produces at a point 5 centimeter directly ab..
at the surface of the ocean the water pressure is the same as the air pressure above the water 15 lbin2. below the
a 15 kg mass starts from rest and slides down an inclined plane 8.0 x 10-1 m long in 0.7 s. what net force is acting on
two 1.7 kg masses are 2.0 m apart center to center on a frictionless table. each has 1.0 microc of charge. a what is
Under the action of a certain torque, a body of moment of inertia I=4kg*m^2 rotates about a fixed axis. Determine the maximum kinetic energy of the body
The drivers of two carss in a demolition derby are at rest 100 m apart. A clock on the billboard reads 12:17:00 at the moment they begin heading straight toward each other. If both are accelerating at a constant 2.5 m/s^2, at what time will they c..
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