The radius of a circle travelled by an electron in a magnetic field perpendicula

Question

The radius of a circle travelled 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 n decreases, R increases b. If B doubles, R increases by 2. c. If B decreases, R decreases d. If B decreases, R stays the same What are the units of voltage, GMF, and P.D. What are the units of resistance, impedance, capacitive reactance, and inductive reactance? Arrange in the order of increasing energy (from lowest to highest energy), visible light, ultraviolet, x-rays, gamma-rays. The resistance of a wire docs not depend on its: a. Mass b. Resistivity c. length d. Cross-sectional area A certain wire has a resistance R. What will be the resistance of another wire that identical to the first except that it has twice the diameter of the first one? a. (1/4)R b. 4R c. (1/2)R d. 2 R Which one of the following is not equivalent to a watt? a. J/sec b. Ohm^2/V c. Ampere * voltage (AV) d. A^2 Ohm Which of the following is not the unit of magnetic field? a. Wb b. Gauss c. Wb/m^2 d. Tesla Which of the Mowing is the unit of flux? a. Gauss b. Wb c. Wb/m^2 d. Tesla

Explanation / Answer

22)

Ans a) If B decreases, R increases.

23)

voltage, EMF and Potential difference all have same unit = Volts(V)

24)

All have same unit ohm

25)

Visible - Ultra voilet - x ray - gamma ray

26)

Ans :- Resistivity

27)

4R

28)

ohm^2/V

29)

Wb

30)

Tesla

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.