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Suppose a zero-resistance rod slides to the right on two zero-res a distance of 0.330 m. The rails are connected by a 16 2 resistor, and thered b a uniform magnetic field with a magnitude of 0.850 T. (a) What emf is induced? (b) Find the speed at which the bar must be moved to produce a current of 0.145 A in the resistor. (c) What is the direction of the induced current? istance rails separated by

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sahir9397

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akindelemf

Answer:

A)  Induced emf is  2.32 Volts

b)  The speed at which the bar must be moved to produce a current of 0.145 A in the resistor is 8.27 m/s

c)  Direction of the induced current is upward

Explanation:

A)  Induced emf is

E = IR

  =0.145  x 16

E = 2.32 Volts

b)   Since induced emf is given by

E = BLv

=>v=E/BL

     =2.32/ 0.85 x 0.33

v = 8.27 m/s

c)  Direction is upward

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