Using Ohm's Law, R = V / I = 24V / 3A = 8Ω.

According to Ohm's law, I = V/R. If V is doubled, I also doubles.

According to Ohm's law, if V is tripled, I will also triple.

Number of boys = 30 - 18 = 12. Probability = 12/30 = 2/5.

According to the First Law of Thermodynamics, ΔU = Q - W. Here, ΔU = 100 J - 40 J = 60 J.

Removing a reactant will shift the equilibrium to the left to produce more reactants, according to Le Chatelier's principle.

According to the first law of thermodynamics, if the internal energy increases, it implies that either work is done on the system or heat is added to the system.

According to the first law of thermodynamics, if the internal energy increases, it implies that heat is added to the system and/or work is done on the system.

The focal length of a concave lens is always negative, as it diverges light rays.

The focal length of a concave lens is considered negative as it diverges light rays.

The focal length of a concave lens is negative, indicating that it diverges light rays.

Using the Nernst equation, E = (0.0591/n) log([C1/C2]), where n=1.

In a concentration cell, the electrodes are made of the same metal but have different concentrations of the electrolyte.

In a concentration cell, the two half-cells have the same electrodes but different concentrations of the electrolyte.

When the object is placed at the focus of a convex lens, the rays of light emerge parallel and no image is formed.

The genotype of the F1 generation from a cross between TT and tt will be Tt (all offspring will be heterozygous).

The height of the F1 generation will be tall, as tall is the dominant trait.

The F1 generation will have red flowers since red is dominant over white.

The arrangement of particles in a crystal lattice is primarily determined by intermolecular forces, which dictate how particles pack together.

In a cyclic process, the net work done is equal to the net heat added to the system, as the internal energy returns to its initial state.

In a damped harmonic oscillator, the amplitude decreases over time due to energy loss.

In a Daniell cell, Zinc acts as the anode.

Decreasing the slit width increases the diffraction angle, causing the central maximum to become wider.

Decreasing the distance between the slits increases the diffraction effect, causing the central maximum to become wider.

The central maximum has the maximum intensity because all light waves arrive in phase at this point, leading to constructive interference.

The expected phenotypic ratio in a dihybrid cross is 9:3:3:1.

Power (P) of a lens is given by P = 1/f (in meters). Here, f = 15 cm = 0.15 m, so P = 1/0.15 = +6.67 D.

Fringe separation (β) = λD/d = (500 x 10^-9 m)(1 m)/(0.1 x 10^-3 m) = 0.5 mm.

The distance between the fringes decreases as fringe width β = λD/d; increasing d reduces β.

Increasing the slit separation d decreases the fringe width, causing the fringes to move closer together.