A metal wire of mass m slides without friction on two horizontal rails spaced distance d-apart as shown in figure. The rails are situated in a uniform magnetic field B, directed vertically upwards, and a battery is sending a current I through them. Find the velocity of the wire as a function of time, assuming it to be at rest initially. A. `(Bid)/(m) t`B. `0`C. `Bidmat`D. none

A metal wire of mass m slides without friction on two horizontal rails

1.	A metal wire of mass m slides without friction on two horizontal rails spaced distance d-apart as shown in figure. The rails are situated in a uniform magnetic field B, directed vertically upwards, and a battery is sending a current I through them. Find the velocity of the wire as a function of time, assuming it to be at rest initially. A. `(Bid)/(m) t`B. `0`C. `Bidmat`D. none
Answer» Correct Answer - A

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