Asked by Francisco
A camcorder has a power rating of 16 watts. If the output voltage from its battery is 4 volts, what current does it use?
Answers
Answered by
Francisco
A 1.5m wire carries a 9 A current when a potential difference of 89 V is applied. What is the resistance of the wire?
The current in a hair dryer measures 10 amps. The resistance of the hair dryer is 8 ohms. What is the voltage?
The current in a hair dryer measures 10 amps. The resistance of the hair dryer is 8 ohms. What is the voltage?
Answered by
Henry
1. P = V*I.
16 = 4*I,
I = ?
3. V = I*R.
16 = 4*I,
I = ?
3. V = I*R.
Answered by
Henry
2. R = V/I = 89/9.
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