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explain how the resistance of a filament lamp changes as the potential difference across it increases

as the potential difference increases, the current increases (ohm's law). this causes the temperature of the filament to increase, causing the resistance to increase.

SQ
Answered by safiya q. Physics tutor
6529 Views

Integrate, with respect to x, xCos3x

Integration by parts:
u = x u' = 1v' = Cos3x v = (Sin3x)/3 + c
So, ∫xCos3x= (XSin3x)/3 - ∫(Sin3x)/3 dx= (XSin3x)/3 - 1/3( - (Cos3x)/3) + c = (XSin3x)/3 + (Cos3x)/9 + c

Answered by Maths tutor
3544 Views

How to structure an essay for A-level modern languages?

Introduction: state your argument within the context of your essay question. Introduce the 2/3 points that you will be making to support your argument.Paragraph 1/2/3 - these points can compare, contrast ...

MC
Answered by Michelle C. French tutor
2113 Views

Expressing surprise using 没想到

In this lesson, we will learn one way to express surprise in Mandarin Chinese.
Let's start with the following examples.
没想到桂林的山水这么美!Méi xiǎngdào guìlín de shānshuǐ zhème měi!I did not expect tha...

VW
Answered by Vicky W. Mandarin tutor
2489 Views

How do I make my translations into French sound more natural?

When translating from French into English (vice versa) it is important to read the passage in its entirety before you even think about having a go at translating it. This is beneficial for a number of rea...

MG
Answered by Matthew G. French tutor
1007 Views

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