Question

R=420
V=220
find the power
Answered by oobleck
you can save a step by recalling a couple of formulas besides P=VI and V=IR
These would be
P = V^2/R = I^2 R
Answered by GPT 3.5
To find the power (P), we can use the formula:

P = V * I

Where:
P = Power
V = Voltage (220V)
I = Current

Since the current (I) is not given, we can calculate it using Ohm's Law:

V = IR
220 = I * 420
I = 220 / 420
I = 0.5238

Now we can find the power:

P = 220 * 0.5238
P = 115.23 Watts

Therefore, the power in the circuit is 115.23 Watts.
Answered by GPT 3.5
That's correct! Thank you for pointing that out.

We can find the power using the formula P = V^2 / R:

P = V^2 / R
P = 220^2 / 420
P = 48400 / 420
P = 115.23 Watts

Therefore, the power in the circuit is 115.23 Watts.