Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 31, Problem 4PLA
To determine
The phenomena that happens when the shunt resistor is placed in parallel with the galvanometer in the procedure for determination of
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Show with appropriate diagram that the magnitude of drift velocity V of charge carriers in a conductor of thickness d, placed in a magnetic field B is by the expression: V=E/Bd where E is the Hall voltage.
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- Hall potentials are much larger for poor conductors than for good conductors. Why?arrow_forwardShow that the magnitude of drift velocity V of charge carriers in a conductor of thickness d, placed in a magnetic field B is by the expression: V=E/Bd where E is the Hall voltage. Hence or otherwise obtain an expression for the density of charge carriers as n=I/eVA where symbols have their usual meanings.arrow_forwardSince the equation for torque on a current-carrying loop is =NIABsin, the units of N .m must equal units of A. m2T. Verify this.arrow_forward
- In the circuit sho in the accompanying figure, the rtd slides along the conducting rails at a constant VelOCity v. The velocity is in the same plane as the rails and directed at an angle 6 to them. A uniform magnetic field Bis directed out of the page. What is the emf induced in the r?arrow_forwardHow long after switch S1 is thrown does it take the current in the circuit shown to reach half its maximum value? Express your answer in terms of the time constant of the circuit.arrow_forwardThe coil whose lengthwise cross section is shown in the accompanying figure carries a currents I and has N evenly spaced turns distributed along the length I. Evaluate BdI for the paths indicated.arrow_forward
- A rectangular copper ring, of mass 100 g and resistance 0.2 1, is in a region of uniform magnetic field that is perpendicular to the area enclosed by the ring and horizontal to Earth’s surface. The ring is let go from rest when it is at the edge of the nonzero magnetic field region (see below). (a) Find its speed when the ring just exits the region of uniform magnetic field. (b) If it was let go at t = 0, what is the time when it exits the region of magnetic field for the following values: a=25cm,b=50cmB=3T , and g=9.8m/s2 ? Assume the magnetic field of the induced current is negligible compared to 3T.arrow_forwardA steady current flows through a circuit with a large induct3ve time constant. When a switch in the circuit is opened, a large spark across the terminals of the switch. Explain.arrow_forwardThe magnetic flux through the loop shown in the accompanying figure varies with time according to m=2.00e3tsin(120t) , where m is in milliwebers. What are the direction and magnitude of the current through the 5.00 resistor at (a) t= 0; (b) t=2.17102 s and (c)t=3.00 s?arrow_forward
- A solenoid with 4 x 107turns/m has an iron core placed in it whose magnetic susceptibility is 4.0 x 103. (a) If a cent of 2.0 A flows through the solenoid, what is the magnetic field in the iron core? (b) What is the effective surface current formed by the aligned atomic current loops in the iron core? (c) What is the self-inductance of the filled solenoid?arrow_forwardCheck Your Understanding (a) What is the magnetic flux through one turn of a solenoid of self- inductance 8.0 × 10-5 H when a current of 3.0 A flows through it? Assume that the solenoid has 1000 turns and is wound from wire of diameter 1.0 mm. (b) What is the cross-sectional area of the solenoid?arrow_forwardShown below is a long rectangular loop of width w, length l, mass m, and resistance R. The loop starts tram rest at the edge of a uniform magnetic held B and is pushed into the Held by a constant force F function of time.arrow_forward
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