If a person can't accompdate and the glasses is +2.50D. At which distance will the person see cleary
1 answer:
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Answer:
R = 28.125 ohms
Explanation:
Given that,
The voltage of a bulb, V = 4.5 V
Current, I = 0.16 A
We need to find the resistance of the filament. Using Ohm's law,
V = IR
Where
R is the resistance of the filament
So,
So, the resistance of the filament is equal to 28.125 ohms.
Answer : .
Explanation:
It is given that,
Electric field strength,
We know that,
Charge of electron,
Mass of electron,
From the definition of electric field, ...............(1)
According to Newton's second law, F = ma..........(2)
From equation (1) and (2)
or
So, the horizontal component of acceleration of an electron is .
Hence, it is the required solution.