Welcome to your 2365 602 Electrical Science
1.
A length of a conductor has a resistance of 1Ω . If its cross sectional area was doubled its resistance would be?
2.
Which of the following devices are used to provide temperature control when heating spaces
3.
Which of the following makes use of the magnetic effect of an electric current?
4.
Which of the following statements regarding molecular structure is true?
5.
An electronic device used to detect changes in levels of light is?
6.
A Preset temperature of an immersion heater is maintained by a?
7.
The resistance of a conductor is dependent on four factors?
8.
What value of resistance is required to have a current of 12A, from a supply of 230v?
9.
An example of a class 3 Lever is?
10.
Which of the following statements is correct?
11.
What is the SI unit of measurement for Frequency?
12.
Which two values of a right-angled triangle are used to calculate the tangent of an angle?
13.
Which ONE of the following statements is true?
14.
What is the definition of 1 ampere ?
15.
A 2 kW, 230 V immersion heater will draw a current of?
16.
The chemical effect of a current is used in?
17.
What is the length of the hypotenuse in the diagram?
18.
A load of conduit has a mass of 137kg, what force will be required to lift it?
19.
A resistor network with three resistors 9Ω, 3Ω, 2Ω are connected in parallel. What will their combined resistance be?
20.
Which one of the following does NOT conduct electricity?
21.
What is the formula for mechanical power?
22.
The relationship between the mass of a body (m), the applied force to the body (F) and the acceleration of the body (a) is given by the formula?
23.
The voltage of the alternator is shown in the form of a?
24.
In the diagram which best represents the Meter labelled as 'B'
25.
Conducting materials contain electrons which are?
26.
What is the SI unit of measurement for Charge?
27.
What is the Quantity symbol for Potential Difference?
28.
A coil of wire is placed in a changing magnetic field. If the number of turns in the coil is increased, the voltage induced across the coil will?
29.
The magnetic effect of an electric current is put to use in a?
30.
What do we call substances that have molecules that are almost unrestricted in movement?
By Neil