Comprehensive Questions | Chapter 14 | Current Electricity | Physics 10th | National Book Foundation

5. How resistance are connected in series combination? What are characteristics of series combination of resistances? Derive the formula for its equivalent resistance? 6. How resistance are connected in parallel combination? What are characteristics of parallel combination of resistances? Derive the formula for its equivalent resistance? 7. In a circuit, three bulb are connected in series and in another circuit, three bulbs are connected in parallel combination. Magnitude of emf source for both circuits is same. How can you explain the difference in brightness of bulbs in both circuits? 8. State and prove Joule’s law of heating.