Question

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

Answer 1

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

Step-by-step 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

Answer 2

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