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Electric current in a solid conductor is a movement of electrons through the conductor. During this process, whenever electrons collide with atoms and ions in the conductor it results in:

Heating of the conductor

Corrosion of the conductor

100%

Generation of a voltage in the conductor

Magnetisation of the conductor

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Which of the following is a non-functional requirement?

Before a customer places a new order, the total cost will be displayed

The

system will be responsive to the user

The

system must send an email whenever an order is placed

The

system will conform to ISO27799

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Deliverable

An item on the critical path of a project

A milestone

A statement from a programmer that the system is complete

A tangible outcome of a technique

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What does the «extends» stereotype do?

Forces the execution of a use case

Allows reuse of functionality

Models "must-have" behaviour

represent functionality that is optional

100%

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To determine the power consumed in a d.c. circuit you would need to multiply the readings of:

an ammeter and a wattmeter

a voltmeter and an ammeter

100%

a wattmeter and an ohmmeter

a voltmeter and a wattmeter

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Which of the following are all typical physiological effects of electric current?

Ventricular fibrillation, asphyxia and muscle spasms

100%

Magnetic fields, burns and luminosity

Corrosion, ventricular fibrillation and magnetic fields

Luminosity, burns and corrosion

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