Electronics - Ohm's Law - Discussion
Discussion Forum : Ohm's Law - Filling the Blanks (Q.No. 5)
5.
The power rating for the resistor in the given circuit should be at least ___.
Discussion:
4 comments Page 1 of 1.
Dolly said:
1 decade ago
What is the concept behind this?
DaveD said:
1 decade ago
I = V/R
I = 8/220 or .036A
P = VI
P = 8 * .036 or .290W
Since .290W > 1/4W(.250) you would need at least 1/2W(.500) resistor to handle the power.
I = 8/220 or .036A
P = VI
P = 8 * .036 or .290W
Since .290W > 1/4W(.250) you would need at least 1/2W(.500) resistor to handle the power.
(1)
Komali said:
1 decade ago
Is the calculation of power and power rating are same?can any one help me. Please.
Jaipur boy said:
10 years ago
@Komali.
Here power is the apparent and power. Rating is the max power handling capacity.
Here power is the apparent and power. Rating is the max power handling capacity.
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