P. 4452. In a long thin iron rod uniformly changing magnetic induction can be created. The induced voltage in a wire around the rod is U=10 mV. A wire is put around the rod such that into one half of it a resistor of resistance R1=10 k, and into the other half a resistor of resistance R2=20 k are inserted.
a) What is the reading on the ideal voltmeter connected to the A and B terminals of the resistors?
b) What would be the reading on a voltmeter of resistance Rm=100 k?
Does the measured voltage depend on to which side of the rod the meter is placed?
Deadline expired on 11 June 2012.
Google Translation (Sorry, the solution is published in Hungarian only.)
Megoldásvázlat. A mérőműszer jobb, illetve bal oldali helyzetétől függően
a) Uj=6,67 mV; Ub=3,33 mV,
b) Uj=6,25 mV; Ub=3,125 mV