The RC charging circuit in a camera flash unit has a voltagesource of 275 V and a capacitance of 125 µF. (a) Findits resistance R if the capacitor charges to 90.0% of its finalvalue in 15.0 s. (b) Find the average current delivered to theflash bulb if the capacitor discharges 90.0% of its full chargein 1.00 ms.
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
The RC charging circuit in a camera flash unit has a voltage
source of 275 V and a capacitance of 125 µF. (a) Find
its resistance R if the capacitor charges to 90.0% of its final
value in 15.0 s. (b) Find the average current delivered to the
flash bulb if the capacitor discharges 90.0% of its full charge
in 1.00 ms.
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