CLASS XII – SAMPLE PAPER PHYSICS Time allowed : 3 hours Max. Marks : 70 General Instructions: All questions are compulsory There are 30 questions in total. Questions 1 to 8 carry one mark each, 9 to 18 carry two marks each, 19 to 27 carry 3 marks each and 28 to 30 carry 5 … Continue reading CLASS XII PHYSICS SAMPLE PAPER FOR AISSCE 2012


The capacitance of a parallel plate capacitor without any medium between its plates is given by When a dielectric completely fills the space between the plates of the capacitor, the capacitance increases K times, where K is the dielectric constant (relative permitivity) of the dielectric. If a dielectric slab of thickness t (<d) is introduced … Continue reading EFFECT OF DIELECTRIC IN A CAPACITOR

What is meant by charge on a capacitor?

Mohit asked this question: "What is meant by charge on a capacitor?" Answer: As we know, a simple capacitor (say a parallel plate capacitor) consists of two plates parallel to each other. When charged, charge on either plate of the capacitor is called charge on the capacitor. The following links will help you explore further … Continue reading What is meant by charge on a capacitor?

An Introduction to Capacitance

Capacitance is the property of an electric conductor that characterizes its ability to store an electric charge. An electronic device called a capacitor is designed to provide capacitance in an electric circuit by providing a means for storing energy in an electric field between two conducting bodies. Read more and watch the interactive JAVA tutorial … Continue reading An Introduction to Capacitance

Revision and Practice Materials for Plus Two Physics – Capacitance

Important concepts and formulas from CAPACITANCE capacitors conceptual questions and solutions Unsolved Numerical Problems for Practice from CAPACITANCE Solved Numerical Problems from CAPACITANCE