EFFECT OF DIELECTRIC IN A CAPACITOR

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

SAMPLE QUESTIONS FOR SA 1 PHYSICS

QUESTION: Out of two solar cookers, one was covered with a plane glass slab and the other was left open. Which of the two solar cookers will be more efficient and why?ANSWER: The solar cooker with the glass slab: as the heat gets trapped within the cooker and the temperature of the cooker rises. It … Continue reading SAMPLE QUESTIONS FOR SA 1 PHYSICS