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Question: Two voltmeters, V<sub>right</sub> or V<sub>left</sub>, each with an internal resistance of 10<sup>6<...

Two voltmeters, Vright or Vleft, each with an internal resistance of 106 W are connected through wires of negligible resistance. The + side of both voltmeter is up as shown. A changing magnetic field is present in the shaded area. At a particular moment in time Vright reads – 0.1V.

What is induced emf in the circuit at that moment?

A
  • 0.1V
B
  • 0.2 V
C

0.3 V

D

0.4 V

Answer
  • 0.2 V
Explanation

Solution

Both voltmeter having equal internal resistance and they are in series, so both will have the same 0.1 volt drop across themselves.

\ Induced emf must be 0.2 volt.