- Trending Categories
- Data Structure
- Operating System
- MS Excel
- C Programming
- Social Studies
- Fashion Studies
- Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Three incandescent bulbs of 100 W each are connected in series in an electric circuit. In another circuit, another set of three bulbs of the same wattage are connected in parallel to the same source.
$(Ð°)$. Will the bulb in the two circuits glow with the same brightness? Justify your answer.
$(b)$. Now let one bulb in both the circuits get fused. Will the rest of the bulbs continue to glow in each circuit? Give reason.
$(a)$. No, the bulbs in the two circuits will not glow with the same brightness. The resistance in the parallel connection of resistors is always less than the resistance in the series connections. So, the bulbs in parallel connection will grow with more brightness.
$(b)$. If one bulb gets fused, the entire circuit will break in a series connection. So, no current will flow into the bulbs. All three bulbs will stop glowing in a series connection. In a parallel connection, the situation is different. Even if the bulb gets fused, the current will continue to flow into the other two bulbs. So, in parallel connection, the other two bulbs will continue to glow.
- Related Articles
- Three incandescent bulbs of 100W each are connected in series in an electric circuit. In another circuit, another set of three bulbs of the same wattage are connected in parallel to the same source.(a)Will the bulb in the two circuits glow with the same brightness? Justify your answer. (b) Now let the circuits of one bulb get fused. Will the rest of the bulbs continue to glow in each circuit? Give Reason.
- Paheli connected two bulbs to a cell as shown in the figure,She found that filament of bulb B is broken. Will bulb A glow in this circuit? Give reason."
- Three bulbs A, B, and C are connected in a circuit as shown in the figure. When the switch is ‘ON’$(a)$. bulb C will glow first.$(b)$. bulb B and C will glow simultaneously and bulb A will glow after some time.$(c)$. all the bulbs A
- In the circuit shown in the figure, when the switch is moved to the ’ON’ position,$(a)$. the bulb A will glow first$(b)$. the bulb B will glow first$(c)$. the bulb C will glow first$(d)$. all bulbs will glow together."
- Will the bulb glow in the circuit shown in the figure? Explain."
- Will the bulb glow when the circuit is closed?
- Name the effect of current responsible for the glow of the bulb in an electric circuit.
- Two bulbs of 100 W and 40 W are connected in series. The current through the 100 W bulb is 1 A. The current through the 40 W bulb will be :(a) 0.4 A (b) 0.6 A (c) 0.8 A (d) 1 A
- Would the bulb glow in the circuit shown in Fig. 12.15?"
- The bulb in the circuit shown in Fig.14.23 does not glow. Can you identify the problem? Make necessary changes in the circuit to make the bulb glow."
- In the circuit shown in Fig. 14.25$(i)$. Would any of the bulb glow when the switch is in the ‘OFF’ position?$(ii)$. What will be the order in which the bulbs A, B and C will glow when the switch is moved to the ‘ON’ position?"
- Three appliances are connected in parallel to the same source which provides a voltage of 220 V. A fuse connected to the source will blow if the current from the source exceeds 10 A. If the three appliances are rated at 60 W, 500 W and 1200 W at 220 V, will the fuse blow?
- Draw a schematic diagram of a circuit consisting of a battery of 3 cells of 2 V each, a combination of three resistors of 10 W, 20 W, and 30 W connected in parallel, a plug key, and an ammeter, all connected in series. Use this circuit to find the value of the following :(a) Current through each resistor.(b) Total current in the circuit.(c) Total effective resistance of the circuit.
- (a) How will you infer with the help of an experiment that the same current flows through every part of a circuit containing three resistors in series connected to a battery?(b) Consider the given circuit and find the current flowing in the circuit and potential difference across the 15 Ω resistor when the circuit is closed."\n
- Figure A and B, show a bulb connected to a cell in two different ways.$(i)$. What will be the direction of the current through the bulb in both the cases $(Q\ to\ P\ or\ P\ to\ Q)$?$(ii)$. Will the bulb glow in both cases?$(iii)$. Does the brightness of the glowing bulb depend on the direction of current through it?"