Advertisements
Advertisements
Question
|
5 bulbs are connected in series in a room. One bulb is fused. It is removed and remaining 4 bulbs are again connected in series to the same circuit. What will be the effect on the following physical quantities? (Increases, Decreases, Remain Same). |
- Resistance
- Intensity of light
Advertisements
Solution
- When one lightbulb is removed, the circuit's overall resistance falls because the equivalent resistance in a series is equal to the sum of all the resistances.
- More current will flow through the circuit, and the light's intensity will rise as the electric circuit's resistance falls.
APPEARS IN
RELATED QUESTIONS
Two copper wires are of the same length, but one is thicker than the other. Which wire will have more resistance?
How are the home appliances connected in general, in series or parallel. Give reasons.
The resistance of a straight conductor is independent of ______.
Two conductors of resistance 2 R and R are connected in series in a battery circuit. The ratio of heat developed In them is ______.
______ is the only non-metal that is a good conductor of electricity.
Three resistors are connected in parallel with a battery. If the current in each resistor is 2A, then the current through the battery will be ______.
A rheostat is also known as fixed resistance.
Define the following:
Fixed resistor
Define the following:
Variable resistor
Observe the given circuit diagram and answer the questions that follow:
- Calculate the resistance of the circuit when the key K completes the circuit.
- Calculate the current through 3Ω resistance when the circuit is complete.
