Navigate

Two bulbs 40 watt and 60 watt and rated voltage 240 V are connected in series

Two bulbs 40 watt and 60 watt and rated voltage 240 V are connected in series across a potential difference of 420 V. Which bulb will work at above its rated voltage

Options

(a) 40 W
(b) 60 W
(c) both 40 W and 60 W
(d) none of the bulbs

Correct Answer:

40 W

Explanation:

No explanation available. Be the first to write the explanation for this question by commenting below.

OA2007
admin:

Related Questions

  1. Which two of the following five physical parameters have the same dimensions?
  2. The magnetic flux linked with a circuit of resistance 100Ω increases from 10 to 60 Wb.
  3. The liquid-crystal phase of a matter is called
  4. The frequencies of X-rays,γ-rays and ultraviolet rays are respectively p,q and r
  5. An electric kettle has two heating elements. One brings it to boil in ten minutes