Question

A medical imaging device shoots 8 million electrons per second through an Ohmic gas. The electrons are motivated by a 3000 V potential difference. What is the effective resistance of the gas?

Answer 1

Answer:

Resistance of the gas is given as

$R = 2.34 \times 10^{15} Ohm$

Explanation:

As we know that number of electrons per second is

$\frac{N}{t} = 8 \times 10^6$

now we have

$i = \frac{N}{t} e$

$i = 8 \times 10^6 (1.6 \times 10^{-19})$

$i = 1.28 \times 10^{-12}$

now we have

$R = \frac{V}{i}$

$R = \frac{3000}{1.28 \times 10^{-12}}$

$R = 2.34 \times 10^{15} Ohm$