The energy produced in the fusion reaction – problems and solutions

1. Based on the following equation of the fusion reaction, determine the energy produced in the fusion reaction! Solution Mass of reactant and product : Mass of reactant (mreactant) = 1.0078 amu + 1.0078 amu = 2.0156 amu Mass...

Simple DC circuits – problems and solutions

1. Based on the figure below, determine the electric current through R1. Known : Resistor 1 (R1) = 4 Ω Resistor 2 (R2) = 4 Ω Resistor 3 (R3) = 8 Ω Electric voltage (V) = 40 Volt Wanted:...

Mechanical waves (frequency, period, wavelength, the wave speed) – problems and solutions

1. Two corks are on the crests of the waves. Both move up and down over the surface of sea 20 times in 4 seconds. If the distance of both corks is 100 cm and between them, there are...

Diffraction by a single slit – problems and solutions

1. Light with wavelength of 500 nm passes through a slit 0.2 mm wide. The diffraction pattern on a screen 60 cm away. Determine the distance between the central maximum and the second minimum. Known : λ = 500...

Electric charge stored in capacitor – problems and solutions

1. Determine the charge in capacitor C5. Known : Capacitor 1 (C1) = 6 F Capacitor 2 (C2) = 6 F Capacitor 3 (C3) = 3 F Capacitor 4 (C4) = 12 F Capacitor 5 (C5) = 6 F...

Young’s double-slit experiment – problems and solutions

1. d is the distance between 2 slits, L is the distance between the slit and the viewing screen, P2 is the distance between the second-order fringe and the center of the screen. Determine the wavelength of light (1...

Rolling motion – problems and solutions

1. A hollow cylindrical object (I = m R2) moves to roll without slipping up a rough inclined plane with an initial velocity of 10 m/s. The inclined plane has an elevation angle θ with tan θ = 0.75....

Electrical energy in capacitor circuits – problems and solutions

1. Determine the electrical energy in the circuit shown in the figure below (1 µF = 10-6 F) Known : Capacitor 1 (C1) = 3 µF Capacitor 2 (C2) = 1 µF Capacitor 3 (C3) = 2 µF Capacitor...

The direction of magnetic induction – problems and solutions

1. Which of the following figures shows the correct direction of magnetic induction due to the wire carrying the electric current … Solution Induction of magnetic or induction magnetic field can be determined using right-hand rule. The first way,...

Electric charges, magnetic field and magnetic forces – problems and solutions

1. If q is the positive electric charge, v is the charge motion, B is the magnetic field and F is the direction of the magnetic force, then the right figure for a charge across the magnetic field is...