P = dE/dt
dE = P*dt
dE = 1 x 10^5 * 12 x 10^-6 = 12 J
dE = CV^2/2
C = 2dE/V^2
V = 320 V
C = 2.3 x 10^-4 F
The flash unit in a camera uses a special circuit to "step up" the 3.0 V...
The flash unit in a camera uses a special circuit to "step up" the 3.0 V from the batteries to 270 V , which charges a capacitor. The capacitor is then discharged through a flashlamp. The discharge takes 11 μs , and the average power dissipated in the flashlamp is 1.0×10^5 W . What is the capacitance of the capacitor?
The flash unit in a camera uses a special circuit to "step up" the 3.0 V from the batteries to 360 V , which charges a capacitor. The capacitor is then discharged through a flashlamp. The discharge takes 12 μs , and the average power dissipated in the flashlamp is 1.0×105 W . What is the capacitance of the capacitor? use 2 sigfigs I have tried 0.27 F and 0.26 F but so far both are wrong on mastering physics.
5. AM: Capacitors are used in many applications where you need to supply a short burst of energy, for example, a mobile defibrillator or a camera's flashlamp. The flash unit in a camera uses a special circuit to “step up” the 3.0 V from the batteries to 300 V, and the 300 V charges a capacitor (otherwise the 3.0 V battery would take very long time to charge the capacitor). The capacitor is then discharged through a flashlamp. The discharge...
The RC charging circuit in a camera flash unit has a voltage source of 275 V and a capacitance of 125F. Find its resistance R if the capacitor charges to 90% of its final value in 15 s. Find the average current delivered to the flash bulb if the capacitor discharges 90% of its full charge in 1.00 ms.
The electronic flash attachment for a camera contains a capacitor for storing the energy used to produce the flash. In one such unit, the potential difference between the plates of a 705 mu F capacitor is 320 V. Determine the energy that is used to produce the flash in this unit. J Assuming that the flash lasts for 5.0 times 10^-3 s, find the effective power or "wattage" of the flash. W
1. Calculate the work done by a 8.5-V battery as it charges a 7.5-μF capacitor in the flash unit of a camera. Express your answer using two significant figures. W=?? μJ 2. Find the electric energy density between the plates of a 225-μF parallel-plate capacitor. The potential difference between the plates is 360 V , and the plate separation is 0.261 mm . uE= ?? Jm^3
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An ac series circuit consists of a voltage source of frequency 60 Hz and voltage amplitude V, a 358-12 resistor, and a capacitor of capacitance 6.2 uF. What must be the source voltage amplitude V for the average electrical power consumed in the resistor to be 432 W? There is no inductance in the circuit. Express your answer using two significant figures. temp@tes Symbols uado ředo reset keyboard shortcuts help, VE
Part A An ac series circuit consists of a voltage source of frequency 60 Hz and voltage amplitude V. a 354- resistor, and a capacitor of capacitance 3.3 uF. What must be the source voltage amplitude V for the average electrical power consumed in the resistor to be 468 W? There is no inductance in the circuit. Express your answer using two significant figures. VE V Submit Previous Answers Request Answer X Incorrect; Try Again; 2 attempts remaining Provide Feedback...
Please answer all parts Consider the circuit shown in (Figure 1). Suppose that Ve = 50070°V (rms). Express your answer to three significant figures and include the appropriate units. View Available Hint(s) IT HA ? 21 = Value Units Submit Part D Find the average power dissipated in the line when the capacitive reactance is connected across the load. Express your answer to three significant figures and include the appropriate units. THA th ? P- Value Units Submit Request Answer...