Osmania University (OU) 2012-4th Year B.E Engineering Physics II Internal, 1/, Affiliated Vasavi College - Question Paper

OmUITMEMT OF PHYSICS ENGINEERING PHYSICS

V S-E n Internal baminMton

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Part-A

Answw all question*. (3 X 2 0* marts)

1.    What are the essential dtfferoices between hard and soft magnetic materials?

2.    The area of hysteresis loop cfrawn between B and H fe 94m*. Each unft space along vertical aids represents atwtm² and along the horizontal aids 20vnptun/m. CMarirte the hystmsls loss when there are 50 magnetization cydes per second.

3.    ExptMn dHTetent types of potorizadon inaJmteiB m delectrtcs.

Part-B

Answs any two (2X7 =14 marks)

4.    (a) Oeseribe the SdtertnfH**¹ method to determine the dfciccWc um of a

material    5M

(b)For a Spedmen of superconductor tha magneOc Web are vejpwtwefr    fcnd