Question 10: Water has a large dielectric constant but it is rarely used in capacitors. Explain why? Answer Water has a large value of dielectric…
Question 10: Water has a large dielectric constant but it is rarely used in capacitors. Explain why? ANSWER Water has a large value of dielectric…
Question 8: What is equipotential line and equipotential surfaces? ANSWER Equipotential lines Equipotential lines in an electric field are those lines which pass through those…
Question 9: Can different equipotential lines cross each other? ANSWER It is not possible for two equipotential surfaces (or lines) to cross each other. This…
Question 11: A capacitor is connected in series with a resistor and charged. Explain why the potential difference across the resistor decreases with time during…
Question 12: Sketch the graph of potential difference against time for (a) discharge of a capacitor (b) charging of a capacitor. ANSWER Consider an RC…
Question 13: Compare the formula for capacitors in series and parallel with those for resistors in series and parallel. ANSWER A: When more than one…
Question 14: Explain why capacitors are of little use for the storing of energy for normal domestic purposes of lightning, heating and so on. ANSWER…
Question 1: The electric potential is constant throughout a given region of space. Is the electric field zero or non-zero in this region? Explain. ANSWER…
Question 2: If a point charge q of mass m is released in a non-uniform electric field with field lines pointing in the same direction,…