In December 2024
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Directions: Sketch the diagram for each item and solve what is being asked.
1. Three capacitors with individual capacitances of 2 μF, 5 μF, and 10 μF
respectively are connected in series with a 12V battery. What are the total
capacitance and total charge in the network?
2. Same capacitors in number 1 connected in a parallel. If the combined
charge in the network is 50 μC, what are the total voltage and total
capacitance in the network?
Directions: Sketch the diagram for each item and solve what is being asked.
1. Three capacitors with individual capacitances of 2 μF, 5 μF, and 10 μF
respectively are connected in series with a 12V battery. What are the total
capacitance and total charge in the network?
2. Same capacitors in number 1 connected in a parallel. If the combined
charge in the network is 50 μC, what are the total voltage and total
capacitance in the network?
2. A particle with a charge of 5nC has a distance of 0.5m away from a charge of 9.5nC. What is
its electric potential energy?
3. Find the electric potential at a distance of 8cm from a 7.58pC charge.
4. What is the electric potential given 0.58m away from a 18uC charge?
5. Calculate the amount of electric potential energy possessed by 2.52x10^-10C at a point
where the electric potential is 4.7 Volts.
6. The electric potential at a distance of 0.92m from a point charge is -8.41x10^5 V. what is the
quantity of the point charge?
Two point charges Q1 = 44 C and Q2 = -5 C are separated by a distance of 17 cm. Find the electric potential energy of the system
The radio tuning capacitor consists of 26 plates of area 24 cm2. The distance between plates when set for maximum capacitance is 2mm. Assuming that the area of projection at maximum capacity is equal to the area of the plates, find the maximum capacity of this condenser.
In raising a 5000-N piano with a pulley system, the workers note that for every 2m or rope pulled down, the piano rise 0.4m.
A. ideally, how much force is required to lift the piano?
B. if the workers actually pull with 2500N of force to lift the piano, what is the efficiency of the pulley system?
Two identical charges, 3.0 m apart, exert forces of magnitude 5.0 N on each other. What is the value of either charge?
The specific weight of glycerin is 78.6 lb/ft3 . Compute its density and specific gravity. What is its specific weight in kN/m3 ?
A certain oscillator satisfies the equation of motion: 𝑥••+ 4x = 0. Initially the particle is at
the point x = √3 when it is projected towards the origin with speed 2.
2.1. Show that the position, x, of the particle at any given time, t, is given by:
x = √3 cos 2t – sin 2t.
In an electrically neutral atom, the number of protons equals the number of?
