Questions
In the circuit diagram, all the bulbs are identical. Which bulb will be the brightest?
detailed solution
Correct option is C
As all bulbs are identical and the power (related to brightness) is given as P = I2 R, so the resistor with the most current will be brightest. As bulb C has the same current as that through the battery while the branches with bulbs A, B and D are in parallel and have the total current split between the branches, the current through bulb C is greatest.Talk to our academic expert!
Similar Questions
A resistor R is connected across a battery of emf 12 V. It observed that terminal potential differenceis 9 V and the power delivered to resistor is 18 W. Internal resistance of the battery ‘r’ and the resistance R are respectively
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