A 660-Q resistor is connected to a variable- voltage power supply. (a) What voltage is necessary to cause a current of 0.5 A in the resistor? (b) What current flows in the resistor when the voltage is 21 V?
A 660-Q resistor is connected to a variable- voltage power supply. (a) What voltage is necessary to cause a current of 0.5 A in the resistor? (b) What current flows in the resistor when the voltage is 21 V?
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U03
![A 660-Q resistor is connected to a variable-
voltage power supply.
(a) What voltage is necessary to cause a current
of 0.5 A in the resistor?
(b) What current flows in the resistor when the
voltage is 21 V?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcb713d83-170a-49de-817b-9f7338f9433a%2F7a39d09a-068e-43e5-8ab6-3dbb79d8664f%2F4pwnejv_processed.jpeg&w=3840&q=75)
Transcribed Image Text:A 660-Q resistor is connected to a variable-
voltage power supply.
(a) What voltage is necessary to cause a current
of 0.5 A in the resistor?
(b) What current flows in the resistor when the
voltage is 21 V?
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