Explanation

Eddy currents are circular currents induced in conductors when exposed to a changing magnetic field.

They flow in loops perpendicular to the magnetic flux that induces them.

Explanation

An alternative unit to kg ms⁻¹ is Ns (Newton-second).

This is because 1 N = 1 kg⋅m⋅s⁻², and multiplying by seconds gives Ns = kg⋅m⋅s⁻¹. 

Explanation

Let the two charges be:

• $+q$ at one end

• $-q$ at the other end

• Distance between them = $2d$

• Midpoint = distance $d$ from both charges

The electric potential at a point due to a charge:

V= kq/r​

So, at the midpoint:

• Potential due to $+q$: +kq/ d​

• Potential due to $-q$: $-frac{kq}{d}$

Vnet​=kq/d​−kq​/d=0

Explanation

The organism found in the gut of termites that helps them digest wood is a protozoan called Trichonympha

These protists break down cellulose in wood, allowing termites to digest it effectively. 

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 any triangle, the greatest angle is always opposite the longest (greatest) side.

This is a basic property of triangles.

Explanation

The average cell cycle duration in a typical human cell is approximately 24 hours.

This includes all phases: G₁, S, G₂, and M (mitosis), essential for proper cell division.

Explanation

A conjunction p ∧ q (p AND q) is true only when both p and q are true.

Explanation

The symbol ∼p means "not p".

If ∼p is true, then p must be false.