9. The radius of a circle traveled by an electron in a magnetic field perpendicu

Question

9. The radius of a circle traveled by an electron in a magnetic field perpendicular to the direction of the moving electron is given by: R = mv/qB. which of the following statements is true: a. If B decreases, R increases b. If B decreases, R decreases c. If B decreases, R stays the same d. If B doubles, R increases by 2 10. What are the units of voltage, EMF, and P.D.? 11. What are the units of resistance, impedance, capacitive reactance, and inductive reactance? 12, A higher wavelength implies higher frequency fA). True or False 13. Arrange in the order of increasing energy (from lowest to highest energy): Visible light, ultravio- let, x-rays, y-rays.

Explanation / Answer

9)

R = mv / qB

Ans :- when B decreases R increases...

10)

EMF = volts or J/C

P.D = Volts

11)

resistance = ohm

impedance = ohm

capacitive = farad

reactance = ohms

inductive = Henry

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