MENU

The potential difference applied to an X-ray tube is 5 kV and the current through it

The Potential Difference Applied To An Xray Tube Is 5 Physics Question

The potential difference applied to an X-ray tube is 5 kV and the current through it is 3.2 mA. The number of electrons striking the target per second is

Options

(a) 5 x 10¹⁶
(b) 1 x 10¹⁷
(c) 4 x 10¹⁵
(d) 2 x 10¹⁶

Correct Answer:

2 x 10¹⁶

Explanation:

Let n = number of electrons striking per sec.

e = 1.6 × 10⁻¹⁹ = charge on each electron

Charge per second = n × 1.6 × 10⁻¹⁹

Current = n × 1.6 × 10⁻¹⁹

3.2 × 10⁻³ = n × 1.6 × 10⁻¹⁹

n = 3.2 × 10⁻³ / 1.6 × 10⁻¹⁹ = 2 × 10¹⁶

Related Questions:

  1. The nuclei of which one of the following pairs of nuclei are isotones?
  2. Heat is not being exchanged in a body. If its internal energy is increased, then
  3. The escape velocity of a body from earth’s surface is Ve. The escape velocity
  4. Consider two particles of different masses. In which of the following situations
  5. A parallel plate capacitor is charged and then isolated. The effect of increasing

Topics: Dual Nature of Matter and Radiation (150)
Subject: Physics (2479)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*