Q No 2: Short Questions (7×2=14)
1: Do bends in a wire affect its electrical resistance? Explain.
2: Why does the resistance of a conductor rise with temperature?
3: Define electric current and its unit?
4: State the Ohm’s law?
5: What is Rheostat?
6: Describe a circuit which will give a continuously varying potential.
7: Explain why the terminal potential difference of a battery decreases when the
current drawn from it is increased?
Previous paper class 2nd Year(Physics)
