Physics, asked by rumanmac, 4 days ago

A bulb of 40W is connected across a source of 200V, then what will be the resistance of the bulb?

Answers

Answered by ananya768

4

Answer:

Data : P = 40 W, V = 220 , V , R = ?

P=VI=V(VR)=V2R

R=V2P=(200V)240W=220×22040Ω=220×2202×20=Ω

=11×110Ω=1210Ω

The resistance of the bulb = 1210Ω

hope it helps you

Previous Question

Next Question

Similar questions

India Languages, 2 days ago

Fill in the blanks एषः _____ | (गजा, विमानम, बालिको । ...

Physics, 2 days ago

6. particle changes linearly with time The minimum value of coefficient of friction () such that block of mass '5 kg' remains at rest is ...

English, 2 days ago

(a) Write the rhyme scheme of this poem. answer correctly ...

Math, 4 days ago

if = and y = qtan,then 2 2 - 2 2 is...

Chemistry, 4 days ago

2. Give Examples of some acidic substances without + H ions.

Math, 8 months ago

Q1) factorize 2a² + 7a + 6 Please answer clearly Q2) in the pic Answer clearly plss I'll mark as BRAINLIEST!

English, 8 months ago

write a letter to your father telling him about your new English teacher ...

Art, 8 months ago

State the limitations of ohm's law.