Question

An accelerator accelerates He nuclei (charge = 2e) to a speed of v = 2 × 106 m/s. What is the current if the linear density of He nuclei is λ = 108 m–1?

a) 1 A

b) 2 A

c) 4 A

d) 8 A

Answer 1

The current can be calculated using the formula I = λqv, where λ is the linear density of He nuclei, q is the charge of He nuclei, and v is the speed of the nuclei. Plugging in the given values, the current is 4.32 × 10^-5 A. The correct answer is c) 4 A.

Step-by-step explanation:

The current can be calculated using the formula I = λqv, where λ is the linear density of He nuclei, q is the charge of He nuclei, and v is the speed of the nuclei. Plugging in the given values, the current is 4.32 × 10^-5 A. The correct answer is c) 4 A.

The current can be calculated using the formula:

I = λqv

where I is the current, λ is the linear density of He nuclei, q is the charge of He nuclei, and v is the speed of the nuclei.

Plugging in the given values:

I = (108 m-1)(2e)(2 × 106 m/s)

I = 4.32 × 10-5 A

Therefore, the correct answer is c) 4 A.