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apchemstudent
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Two 0.68 m long conducting rods are rotating at the same speed in opposite directions, and both are perpendicular to a 4.7 T magnetic field. As the drawing shows, the ends of these rods come to within 1.0mm of each other as they rotate. More-over, the fixed ends about which the rods are rotating are connected by a wire, so these ends are at the same electric potential. If a potential difference of 4.5*10^3 V is required to cause a 1.0 mm spark in air, what is the angular speed (in rad/s) of the rods when a spark jumps across the gap?
Is it possible to still use the formula
Voltage potential = velocity * magnetic field * length of rod ?
v = r*angular speed
(4.5*10^3)/(4.7*.68) = v = r * angular speed
i got the angular speed as 2070 rad/sec. Is this correct how i solved the question? if not can you correct me. Thanks
Is it possible to still use the formula
Voltage potential = velocity * magnetic field * length of rod ?
v = r*angular speed
(4.5*10^3)/(4.7*.68) = v = r * angular speed
i got the angular speed as 2070 rad/sec. Is this correct how i solved the question? if not can you correct me. Thanks