A 20 ohm light bulb and a 10 ohm light bulb are placed in parallel with one anot
ID: 2287708 • Letter: A
Question
A 20 ohm light bulb and a 10 ohm light bulb are placed in parallel with one another in a circuit(along with a battery). All three circuit elements are parallel with eachother. In this situation (choose one of the following defend your choice with an explanation)
a) The 20 ohm light bulb will have the same voltage drop as a 10 ohm light bulb
b) The 20 ohm light bulb will have the same amount of brightness(i.e power dissipation) as the 10 ohm light bulb
c) The 20 ohm light bulb will be brighter than the 10 ohm light bulb
d) The 10 ohm light bulb will be brighter than the 20 ohm light bulb
e) The above statements, a) and b) are both correct
Explanation / Answer
power=V2/R
since voltage is same across both resistor
resistance of 10 ohm bulb will bright more due to more power.
option a and d are correct
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