Explanation

Ohm's law states that in a closed circuit, current is proportional to the voltage and inversely proportional to the resistance.

This means that as voltage increases, current increases, and as resistance increases, current decreases.

Explanation

KVA (Kilovolt-Ampere) is used to express the apparent power capacity of an electrical generator or transformer.

It representing the total power without considering the power factor.

It combines both real power (in KW) and reactive power (in KVAR).

Explanation

Before measuring with an oscilloscope, it must be calibrated:

Voltage wise: For accurate voltage readings.

Time wise: For precise timing and frequency.

Frequency wise: For correct frequency measurement.

Wave shape wise: To ensure accurate waveform display.

Explanation

A vehicle's battery is charged due to the chemical reactions between the electrodes and electrolyte inside it, which generate electrical energy.

This chemical effect is fundamental to the battery's ability to store and supply electrical power.

Explanation

Porcelain is an insulating material with high resistance to electrical current.

This making it suitable for use in insulators for electrical wiring and components.

In contrast, Aluminum, Copper, and Silver are conductors that allow electrical current to flow easily.

Explanation

A diode is a semiconductor device that allows current to flow in one direction only.

It effectively acting as a one-way valve for electrical current.

This property makes it useful in various electronic circuits for controlling the direction of current flow.

Explanation

A capacitor consists of two conductors separated by a non-conductive region.

It stores electrical energy in an electric field between the conductors.

Explanation

The strength of the magnetic field around a conductor is determined by how much current is flowing.

The magnetic field is directly proportional to the current.

Explanation

An inductor stores energy in the form of a magnetic field when current flows through it.

The energy is stored due to the magnetic field created around the inductor's coil.

Explanation

Resistors connected in parallel are arranged side-by-side, allowing the charge to split into multiple paths.

Each resistor experiences the same voltage across it but has different currents depending on its resistance.