Top answers

What is resistivity?

Resistivity is the measure of a materials resistance per unit area
TP
Answered by Tudor P. • Physics tutor
3235 Views

‘The British judiciary has become increasingly politicised.’ Discuss.

Judicial decisions influencing British politics has, if anything, been thrust into the awareness of the public recently. One must only think of the increased importance of Human Rights in English law under t...
NS
Answered by Niklas S. • Politics tutor
16682 Views

Explain why sulfur deviates from the general trend in ionisation energies across period 3.

Sulfur has the electronic structure [Ne]3s2 3p4. This means there are 2 electrons in the same p orbital. These repel each other making it easier to remove the electron causing the ionisation energy to be low...
AM
Answered by Angus M. • Chemistry tutor
15565 Views

How does myelination of neurones increase conduction velocity?

Myelination is the production of a myelin sheath - a fatty, electrically insulating layer formed by Schwann cells wrapping around the axons of neurons. This sheath is not continuous, there are gaps between S...
KG
Answered by Kavindi G. • Biology tutor
13036 Views

Describe the process of semi-conservative replication

Process - key words from mark schemes are highlighted in bold 1. The enzyme DNA helicase breaks the hydrogen bonds linking base pairs of DNA. As a result, the double helix unwinds and into two separate stran...
TC
Answered by Tara C. • Biology tutor
12044 Views