Home
Class 12
PHYSICS
Two electric lamps of 40 watt each are c...

Two electric lamps of 40 watt each are connected in parallel. The power consumed by the combination will be

A

20 watt

B

60 watt

C

80 watt

D

100 watt

Text Solution

AI Generated Solution

The correct Answer is:
To find the total power consumed by two electric lamps of 40 watts each connected in parallel, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding the Configuration**: - We have two electric lamps, each rated at 40 watts. - They are connected in parallel. 2. **Power in Parallel Circuits**: - In a parallel circuit, the total power consumed is the sum of the power consumed by each component. - Therefore, the formula for total power \( P_{\text{total}} \) in parallel is: \[ P_{\text{total}} = P_1 + P_2 \] 3. **Substituting the Values**: - Here, both lamps have the same power rating: \[ P_1 = 40 \, \text{W} \quad \text{and} \quad P_2 = 40 \, \text{W} \] - Substituting these values into the formula: \[ P_{\text{total}} = 40 \, \text{W} + 40 \, \text{W} \] 4. **Calculating the Total Power**: - Now, perform the addition: \[ P_{\text{total}} = 80 \, \text{W} \] 5. **Conclusion**: - The total power consumed by the combination of the two lamps connected in parallel is: \[ \boxed{80 \, \text{W}} \]
Promotional Banner

Topper's Solved these Questions

  • HEATING AND CHEMICAL EFFECT OF CURRENT

    ERRORLESS |Exercise Heating Effect of Current|2 Videos
  • HEATING AND CHEMICAL EFFECT OF CURRENT

    ERRORLESS |Exercise Chemical Effect Current|1 Videos
  • ELECTROSTATICS

    ERRORLESS |Exercise Ordinary Thinking Objective Questions (Electric Flux and Gauss.s Law)|28 Videos
  • KINETIC THEORY OF GASES

    ERRORLESS |Exercise QUESTIONS|126 Videos

Similar Questions

Explore conceptually related problems

Two electric bulbs of 40 watt each are connected in series. The power consumed by the combination will be

When two electric bulbs of 40W and 60W are connected in parallel, then the:

Two bulbs which consume powers P_(1) " and P_(2) are connected in series. The power consumed by the combination is

In above question, if the bulbs are connected in parallel, total power consumed is

In above question, if the bulbs are connected in parallel, total power consumed is

Two equal resistances are connected in seires across a battery and consume a power P If these are connected in parallel, then power consumed will be

A 220 volt and 800 watt electric kettle and three 220 volt and 100 watt bulbs are connected in parallel. On connecting this combination with 220 volt electric supply, the total current will be

Two capacitors each of value C are connected in parallel. When this combination is connected in series with an identical combination, the effective capacitance becomes:

An electric bulb is rated 220 volt - 100 watt. The power consumed by it when operated on 110 volt will be