/* * flashcap.c -- find C (uF value) for a flashlamp. * * 2 * E * C = ------- * V * V * * compile with: cc -o flashcap flashcap.c -lm * * Copyright (c) 2000, Eddie Kovelan and Sam Goldwasser */ #include #include #include main() { float C, E, V; printf("\n \ **********************************************************\n \ * This program finds the required capacitor value (uF) *\n \ * for a flashlamp given the voltage (V) and energy (J). *\n \ **********************************************************\n"); printf("\nEnter Energy (J): "); scanf("%f", &E); printf("Enter Voltage (V): "); scanf("%f", &V); E = E * 1000000.0; /* because cap is in uf */ V = (V * V); C = 2 * E / V; printf("\nCapacitor: %4.3f uF.\n\n", C); } ֹapp