The voltage ratio in a transformer is inversely proportional to the turns ratio: Vp/Vs = Np/Ns = 200/50 = 4.

Turns ratio = Np/Ns = 200/50 = 4:1.

The voltage transformation ratio in a transformer is determined by the ratio of the number of turns in the primary coil to that in the secondary coil.

The magnetic force is maximum when the angle between the velocity and the magnetic field is 90 degrees, as sin(90°) = 1.

If capacitive reactance (X_C) is greater than inductive reactance (X_L), the circuit is capacitive.

If the current lags the voltage, it indicates an inductive load, as inductors cause the current to lag behind the voltage.

If the current lags the voltage, it indicates an inductive circuit, where the current phase is behind the voltage phase.

If the current lags the voltage, it indicates the presence of an inductive load, as inductors cause the current to lag behind the voltage.

If the current lags the voltage, it indicates an inductive load, as inductors cause the current to lag behind the voltage.

Inductive reactance (X_L) is given by X_L = 2πfL. If the frequency (f) is doubled, X_L also doubles.

The reactance of an inductor is given by X_L = 2πfL. If frequency is doubled, reactance halves.

The power factor is cos(θ). If PF = 0.5, then θ = cos^(-1)(0.5) = 60 degrees.

A power factor of 1 indicates a purely resistive load.

For a resistor, the current is in phase with the voltage. Therefore, I(t) = V(t)/R = (V_0/R) sin(ωt).

The time constant τ in an RL circuit is defined as τ = L/R, where L is the inductance and R is the resistance.

The time constant τ for an RL circuit is given by τ = L/R, where L is the inductance and R is the resistance.

The bandwidth (Δf) of an RLC circuit is inversely proportional to the resistance (R). Increasing R decreases the bandwidth.

Resonance occurs when the inductive reactance (XL) equals the capacitive reactance (XC).

The quality factor (Q) is given by Q = (1/R)√(L/C). Increasing R decreases Q.

Resonance in an RLC series circuit occurs when the inductive reactance (X_L) equals the capacitive reactance (X_C), i.e., X_L = X_C.

In Biot-Savart Law, 'dL' represents an infinitesimal element of length along the current-carrying conductor.

A changing magnetic field induces an electromotive force (EMF) in a conductor, leading to the flow of current.

'dl' represents the infinitesimal length of the wire segment that contributes to the magnetic field at a point.

The symbol μ₀ represents the magnetic permeability of free space, which is a constant used in the Biot-Savart Law.

A 'current element' refers to a small segment of wire carrying current, which contributes to the overall magnetic field.

The magnetic field lines around a straight wire are concentric circles, which are perpendicular to the wire.

The magnetic field around a straight conductor is always perpendicular to the direction of the current.

The magnetic field inside a bar magnet points from the north pole to the south pole.

Using the right-hand rule, the magnetic field inside a current-carrying loop points into the plane of the loop.

The magnetic field is zero at the midpoint between two parallel wires carrying equal currents in opposite directions.