Final answer:
A graph of the voltage across a charging capacitor shows an exponential increase over time. Timing circuits control the timing of events in electronic circuits and have various applications. The speed of a strobe flash can be calculated using the formula speed = distance / time.
Step-by-step explanation:
The Voltage Across a Charging Capacitor
When a capacitor is charging in a circuit, the voltage across the capacitor gradually increases over time. Initially, the voltage across the capacitor is low, but as it charges, the voltage increases until it reaches the applied voltage. The graph of the voltage across a capacitor over time is exponential, starting from zero and approaching the applied voltage.
Timing Circuit and Applications
A timing circuit is a circuit that controls the timing of events or processes. It typically consists of resistors, capacitors, and an oscillator or timer. One common application of timing circuits is in electronic circuits, where they are used to control the response time of various components, such as triggering a relay or generating a pulse. Timing circuits are also used in various electronic devices, such as timers, clocks, and sensors.
Calculating the Strobe Flash Speed
To calculate the necessary speed of a strobe flash to 'stop' the movement of an object, you need to consider the distance the object travels and the duration you want to capture. You can use the formula speed = distance / time to calculate the speed. For example, if the distance is 5 meters and you want to capture the object's movement in 0.5 seconds, the speed of the strobe flash should be 10 meters per second.