Next a voltmeter is connected across the bar, with the connections across the ba

Question

Next a voltmeter is connected across the bar, with the connections across the bar carefully placed directly across from each other vertically. Nothing else in the circuit is changed.

F. What is the reading on the voltmeter? Explain briefly.

Finally, using large coils not shown on the following diagram, a uniform magnetic field of 1.8 tesla is applied perpendicular to the bar (out of the page, as shown).

G. Draw charges on the bar showing the polarization of the bar caused by the magnetic field. Your answer must be consistent with your answers above.

H. Now what is the reading on the voltmeter? Give a number and a sign. Remember that a voltmeter reads positive if the "+" terminal is connected to higher potential. Show your work.

Explanation / Answer

reading of volt is higher use q=mc delta t

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