ACTIVITY 1; PROBLEM SOLVING ON CAPACITANCE, 1. The shutter button of a camera flashbulb was pushed and the flash unit released 5.25 x 10-4 Coulomb of charge stored in a 8.50 x 10-5 Farad capacitor. Find the potential difference across the plates of the capacitor inside the flashbulb. 2. Three capacitors were connected in series and each has a capacitance of 1.25 pF. Find the equivalent capacitance of the capacitors. 3. The capacitors in Number 2 were connected in parallel, find the equivalent capacitance. 4. Two capacitors were connected in series. One capacitor has a capacitance of 25 pF and the total capacitance is 8.0 pF. Find the capacitance of the other capacitor. 5. Two capacitors, 25 pF and 45 pF, were connected in series to a 12 V battery. Find the charge and the potential difference across each capacitor. 6. The two capacitors in Number 5 were connected in parallel instead, find the charge in each capacitor. ACTIVITY 2: PROBLEM SOLVING ON ELECTRIC CURRENT AND EMF 1. A flashlight is powered by a 4.5 V battery with a 60.0 2 resistance. Find the current in the circuit. 2. A 4.5 2 resistor was connected to a battery with terminal voltage of 3.0 V. The internal resistance of the battery is 0.50 2, find the electromotive force of the battery. 3. The battery has an emf of 6.00 V and connected to a 3.00 2 resistor. The current in the circuit is 1.86 Ampere. Find the internal resistance of the battery 4. The internal resistance of the battery is 0.45 2 and the emf is 6.0 V. Find the terminal voltage of the battery if the electric current in the circuit is 2.0 ampere