Q 1262734635.     An electric bulb rated for `500` W at `100` V is connected with a `200` V supply. The resistance `R` that must be put in series with the bulb, so that the bulb delivers `500` W is…………..Ω.

JEE 1987
A

`10`

B

`40`

C

`25`

D

`20`

HINT

Voltage across same resistance will be same.

Find instant solution to any question from our database of 1.5 Lakh + Questions

 

Access free resources including

Engineering

Medical

Banking

DEFENCE

SSC

RRB

CBSE-NCERT

OLYMPIAD

Today's Score

0
Success Rate: NAN %

Practice & Test

Sr. No.SubjectTagCorrectRecorded Answer