Percentage error = (|Measured - True| / True) × 100 = (|20.0 - 19.5| / 19.5) × 100 ≈ 2.56%.

Percentage error = |(True value - Measured value) / True value| * 100 = |(50 - 48) / 50| * 100 = 4%.

If two particles are executing simple harmonic motion in the same direction with the same amplitude and frequency, their phase difference is 0.

If they have the same frequency and direction, the phase difference is 0.

In phase means the phase difference is 0 radians.

Poisson's ratio (ν) = Lateral strain / Longitudinal strain = 0.002 / 0.005 = 0.4.

Poisson's ratio (ν) = -lateral strain / longitudinal strain = -0.008 / 0.02 = 0.4.

Poisson's ratio (ν) = Lateral strain / Longitudinal strain = 0.02 / 0.01 = 2.

Poisson's ratio (ν) = -lateral strain / longitudinal strain = -0.005 / 0.01 = 0.5.

Potential difference V = E * d = 400 N/C * 0.5 m = 200 V.

At maximum displacement, potential energy is maximum and kinetic energy is zero.

Potential energy U = k * q1 * q2 / r = (9 × 10^9 N m²/C²) * (3 × 10^-6 C) * (4 × 10^-6 C) / 0.3 m = 0.36 J.

Potential energy U = k * q1 * q2 / r = (9 × 10^9 N m²/C²) * (3 × 10^-6 C) * (4 × 10^-6 C) / 0.2 m = 54 J.

Potential energy (PE) is calculated using the formula PE = mgh. Here, PE = 2 kg × 9.8 m/s² × 10 m = 196 J.

Potential energy U = k * q1 * q2 / r = (9 × 10^9 N m²/C²) * (3 × 10^-6 C) * (4 × 10^-6 C) / 0.2 m = 54 J.

The potential energy (U) stored in a capacitor is given by U = 1/2 CV^2.

The potential energy (U) stored in a capacitor is given by the formula U = 1/2 CV², where C is the capacitance and V is the voltage across the capacitor.

Power P = I^2 * R = (3A)^2 * 10Ω = 9 * 10 = 90W.

Power P = I^2 * R = (2 A)^2 * 10 Ω = 4 * 10 = 40 W.

The prefix for 10^6 is Mega (M).

Nuclear fusion is primarily applied in hydrogen bombs, where fusion reactions release immense energy.

The inductance of a coil is determined by the length of the wire, the number of turns, and the material of the core.

A diode primarily functions to rectify current, allowing it to flow in one direction only.

The primary product of nuclear fission is energy, along with neutrons and smaller nuclei.

The fission of Uranium-235 primarily produces Barium and Krypton along with additional neutrons.

The primary product of hydrogen fusion in stars is helium, which occurs through the proton-proton chain reaction.

The primary product of the fusion of hydrogen nuclei (protons) is helium, along with the release of energy.

Brittleness is primarily due to high atomic bonding energy, which prevents the material from deforming plastically.

Plastic deformation occurs when the material is subjected to stress beyond its yield strength.

The stability of a nucleus is primarily determined by the ratio of neutrons to protons, which affects the balance of forces within the nucleus.