Capacitor, 2: Constant resistance 3: Voltmeter, 4: Inductor. -1: Capacitor, 2: V

Question

Capacitor, 2: Constant resistance 3: Voltmeter, 4: Inductor. -1: Capacitor, 2: Variable resistance, 3: Voltmeter, 4: Ammeter. Q11- Graph A, shown below, shows the relationship between the induced tectromotive force and time. When the N-pole of a magnet bar is dropped tig a coi. The other two graphs (B and C) compared to Graph A are: dircle A- Graph B represents is the S-pole of the same magnet dropped through the B- Graph C represents is the N- pole of two magnets same as the one used in C- The incoming magnetic flux is same as the outgoing magnetic flux in all D- The maximum induced electromotive force of the incoming flux is more than same coil. graph A taped together and dropped through the coil. graphs. that of the outgoing in all graphs Ein(v) Ein(v) En(v) Graph A Graph C Area -0.084VS Graph 8 Area 0.084 v.s Area o.168 v.s time s time (s) time (s) Q12- The maximum incoming induced electromotive force is less than the maximum outgoing induced electromotive force. The reason behind this fact is S: A- The incoming flux is more than the outgoing flux. B- The incoming flux is less than the outgoing flux. C- The incoming magnet's speed is less than the outgoing magnet's speed. Dept. of Applied Physcs and Astronomy Final Exam-Fall 17/18 Physics 2 lab

Explanation / Answer

Q 12) .

Max. Incoming induced electromotive force is less than the maximum outgoing induced emf because incoming flux is more than outgoing flux.

Flux = no. Of field line passing through an area =B.A

Emf = change in flux.

Option A is correct

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