Question
Medium
Solving time: 3 mins
Two electric bulbs rated at and 100 are connected in series across a voltage source. If the and bulbs draw powers and respectively, then
(a)
(b)
(c)
(d)
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Text solutionVerified
Exp. (a)
Resistance of a bulb of power and with a voltage source is given by
Resistance of the given two bulbs are
and
Since, bulbs are connected in series. This means same amount of current flows through them.
Current in circuit is
Power drawn by bulbs are respectively,
and
Resistance of a bulb of power and with a voltage source is given by
Resistance of the given two bulbs are
and
Since, bulbs are connected in series. This means same amount of current flows through them.
Current in circuit is
Power drawn by bulbs are respectively,
and
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Question Text | Two electric bulbs rated at and 100 are connected in series across a voltage source. If the and bulbs draw powers and respectively, then (a) (b) (c) (d) |
Topic | Current Electricity |
Subject | Physics |
Class | Class 12 |
Answer Type | Text solution:1 |
Upvotes | 11 |