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.

admin:

Related Questions

  1. In an NPN transistor the collector current is 24 mA. If 80% of the electrons
  2. A bomb of mass 30 kg at rest exploded into two pieces of masses 18 kg
  3. Bohr’s postulates quantizes
  4. Which of the following rods of same material undergoes maximum elongation
  5. A cell of emf E and internal resistance r supplies current for the same time