Examkits is a JAMB CBT practice platform that provides over 20 years of past questions, Post UTME questions, and detailed video solutions to help students prepare for their exams.

How do I practice JAMB past questions on Examkits?

You can practice JAMB past questions online, on Android, or on a desktop using the Examkits app. Just register on our website and choose your preferred device.

Does Examkits work offline?

Yes. Our Android and Windows versions support offline usage. Once downloaded and activated, no internet is required to use most of the features.

Do you offer video solutions for JAMB questions?

Yes, Examkits provides detailed video explanations for all JAMB past questions from 2000 to 2024, helping students understand how to solve each problem.

Examkits offers free practice for some subjects. However, full access requires a one-time affordable activation fee for each version of the app.

CHEMISTRY

JAMB 2003 - Question 11

Chemistry 2003 JAMB Past Questions - Question 11: When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes

Choose the correct answers from the options given.

When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes

A: negatively charged

B: positively charged

C: neutral

D: bipolar

Examkit's JAMB CBT App

Practice JAMB offline with our Online, PC and Mobile App

✅ 25+ years of past questions (2000 to 2025)
✅ Video solutions and explanation to questions
✅ E-library
✅ Study by topic
✅ And more.

Correct Answer

Explanation

.When cathode rays are deflected onto the electrode of an electrometer, the instrument becomes negatively charged. This is because cathode rays consist of electrons, and when they strike a surface, they transfer their negative charge to that surface, resulting in a net negative charge on the electrometer electrode.