A 150-V battery is connected across two parallel metal plates of
area 28.5 cm2 and a...
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Physics
A 150-V battery is connected across two parallel metal plates ofarea 28.5 cm2 and a separation of 8.20 mm. A beam ofalpha particles (charge +2e, mass 6.64E-27 kg) is accelerated fromrest through a potential difference of 1.75 kV and enters theregion between the plates perpendicular to the electric field.
What magnitude and directionof magnetic field are needed so that the alpha particles emergeundeflected from between the plates?
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