Welcome to your 2365 602 Electrical Science
1.
What is the value of the total resistance in the diagram?
2.
What is the SI unit of measurement for Time?
3.
What is the SI unit of measurement for resistance?
4.
A Preset temperature of an immersion heater is maintained by a?
5.
The diagram shows a simple motor, indicating the field poles and direction of current flow. In which one of the following directions would the conductor move?
6.
The voltage of the alternator is shown in the form of a?
7.
Resistances 4 Ω, 25 Ω 20 Ω and 5 Ω are connected in series. The total resistance of the circuit is?
8.
What is the formula for average mechanical power?
9.
Transpose the formula R = pL/a to find p?
10.
Which of the following electronic components is a solid state switch that allows current flow between two of its terminals and a small current is sensed on its third terminal?
13.
An immersion heater uses the heating method of?
14.
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?
15.
Using OHMS Law at a constant voltage, if Current increase then resistance?
16.
Resistances 4Ω, 15Ω, 10Ω, 5Ω are connected in parallel. The total resistance of the circuit is?
17.
Work done is calculated by multiplying?
18.
What is the SI unit of measurement symbol for Luminous intensity?
19.
What is the Quantity symbol for Impedance?
20.
A crowbar is used to lift a load of 70kg. The fulcrum is 0.2m from the load and the force is applied at a point 1m from the other side of the fulcrum. The amount of effort required to lift the load will be equivalent to?
21.
What is the formula for electrical charge?
22.
Which two values of a right-angled triangle are used to calculate the sine of an angle?
23.
Which of the following statements is correct?
24.
A piece of steel wire is to be cut by a pair of wire cutters. The wire is gripped 5mm from the fulcrum, whilst the pressure is applied to the handles 80mm from the fulcrum. Calculate the force that must be applied to the handles in order to cut the wire if it requires a direct cutting force of 160N?
26.
The direction of the magnetic field produced by a current in a coil depends on the direction of the?
27.
The resistance of a conductor is dependent on four factors?
29.
Refer to the figure shown. What does value 'B' indicate?
30.
Insulating materials contain electrons which are?
By Neil