Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 10 Answered

two bulbs A and B are rated 100W-120V and 10W-120V respectively..they are connected across a 120V..
Asked by deepitapai | 03 Feb, 2009, 07:56: PM
answered-by-expert Expert Answer

The energy consumed by a bulb is i2 R.

Using the information given first find the resistance of each bulb which can be found using P = V2/R.

Then simply consider two resistors connected in series and find the current in the circuit. Next find energy in each bulb.

At times to keep the calculation easy do not simplify completely at each step. For instance write the resistance of the 100W 120V bulb as (1202/100) and use it in this form while doing calculations.

Try solving the question and let me know at which step do you have trouble solving further.

Answered by | 05 Feb, 2009, 04:34: PM
CBSE 10 - Physics
Asked by khajannirwan | 27 Feb, 2024, 10:20: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by sakshikatewa0 | 08 Feb, 2024, 12:48: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by saanviyadla | 24 Jan, 2024, 07:06: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by kamalaranjanmohantymohanty5 | 06 Jan, 2024, 10:05: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by nandhikasugumar | 05 Oct, 2023, 04:01: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 10 - Physics
Asked by daniya062008 | 02 Oct, 2023, 08:25: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
Get Latest Study Material for Academic year 24-25 Click here
×