A 12- $\mu$ F Capacitor in a Flash Camera Is Charged by a Charged

question 54

Multiple Choice

A 1.2- $\mu$ F capacitor in a flash camera is charged by a 1.5-V battery.When the camera flashes,this capacitor is discharged through a resistor.The time constant of the circuit is 10 ms.What is the value of the resistance?

• A)8.0 \(\times\) 10^-2 \(\Omega\)
• B)0.12 \(\Omega\)
• C)12 k\(\Omega\)
• D)8.3 k\(\Omega\)
• E)3.1 k\(\Omega\)

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