Explanation

 The combined effect of resistance and reactance in an electrical circuit is known as impedance.

Impedance, denoted by the letter 'Z',

Represents the total opposition to the flow of alternating current (AC) in a circuit.

It encompasses both resistance (opposition to current flow due to the material's properties) and reactance (opposition due to capacitance and inductance). 

Explanation

 At high frequencies, an RLC series circuit behaves like an RL circuit. 

At high frequencies, the inductive reactance (XL) becomes very large compared to the capacitive reactance (XC).

This means the circuit is dominated by the inductive behavior.

The circuit essentially behaves like a combination of a resistor and an inductor. 

Explanation

In the photoelectric effect, photons strike a metal and release electrons.

In x-ray production, high-energy electrons strike a metal and emit photons — the reverse of the photoelectric effect.

Explanation

Explanation

Explanation

Increase in entropy generally means an increase in "randomness."

Explanation

The SI unit of stress is the Pascal (Pa), which is equivalent to Newtons per square meter (N/m²).

Therefore, the SI unit of stress is the same as that of pressure. 

Explanation

• In a parallel circuit, each branch has its own path for current to flow.
• If one branch is interrupted, the other branches will continue to operate normally.

Explanation

 The unimportant factor in describing a satellite's orbit is the mass of the satellite. 

Explanation

The standard SI unit for magnetic dipole moment is the ampere-square meter (A⋅m²).

It can also be expressed in terms of energy and magnetic field strength, resulting in joules per tesla (J/T), which is equivalent to A⋅m².