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QAIPMT-2008-Ph-2268: NEET 2008 Physics - Class 12 AIPMT-2008-Ph-2268 Solution: A parallel plate capacitor has a uniform electric field E in…
A parallel plate capacitor has a uniform electric field E in the space between the plates. If the distance between the plates is d and area of each plate is A the energy stored in the capacitor is
Multiple Choice Options
- A 1 watt
- B 5 watt
- C 4 watt
- D 2 watt
Step-by-Step Verified Solution
Clearly, 2 � , 4 � and ( 1 + 5) � resistors are in parallel. Hence, potential difference is same across each of them.
_ I 1 _ 2 = I 2 _ 4 = I 3 _ 6
Given I 1 = 3A _ I 1 _ 2 = I 3 _ 6
Given I 1 = 3A.
_ I 1 _ 2 = I 3 _ 6 provides
I 3 = I 1 _ 2 6 = 3 _ 2 6 = 1 A
Now, the potential across the 5 � resistor is
V = I 3 _ 5 = 1 _ 5 = 5V.
_ the power dissipated in the 5 � resistor
P = V 2 R = 5 2 5 = 5 w a t t .