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Describe the generator effect and its use within transformers (6 marks)

The generator effect is the induction of a potential difference (leading to a current) when a wire experiences a change in magnetic field) (2 marks)In a transformer, there are primary and secondary coils....

Answered by Tobias M. • Physics tutor

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Explain one economic problem caused by traffic congestion

Traffic congestion: causes delays and results in the late arrival of workersTherefore, there is a loss of working hours which results in lower productivity for companies as there is less time available to...

Answered by Saskia W. • Geography tutor

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2x+y=18, x-y=6; Solve the simultaneous equations

2x+y =182) x-y =6(x-y=6) multiply by +22x-2y = 121) 2x+y = 182) 2x-2y=12 -subtract equation 2 from equation 10x-y=6 -Therefore -y=6 so y= -6Put value for y into either of the equation in order to fi...

Answered by Saskia W. • Maths tutor

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Why does bread start to taste sweet after being chewed in the mouth for a long period of time?

[Hints given to student: (1) Bread contains starch, and (2) saliva mixes with your food when you are chewing].ANSWER: Bread contains the carbohydrate called 'starch', a molecule consistin...

Answered by Raghav A. • Biology tutor

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Who won the Cold War and why was this outcome significant to the progression of world history?

Break this question into two parts. Firstly, what was the result of the Cold War? Secondly, why was this result important? To answer the first question, ask yourself when the Cold War ended and why you t...

Answered by Abby S. • History tutor

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