Before you keep on reading this module, answer first the pre-assessment test given below to find out what you already understand about the subject. |
- Use both hands when connecting equipment to a circuit.
- Do not wear loose or flopping clothing.
- Voltage is the basic unit of electric current.
- Neutron is the dense central portion of atom.
- Magnetism is the most common method of producing electricity.
II. Name the following schematic symbols. Select your answer from the choices given on the right
1. 2. 3. 4. 5. | CAPACITOR RECTIFIER DIODE INDUCTOR NPN TRANSISTOR PNP TRANSISTOR RESISTOR |
III. SELECT THE LETTER OF THE BEST ANSWER.
- The unit used to express resistance is ohms which is named after:
- Peter Georg Ohm
- Georg Simon Ohm
- James Ohm
- 30,000 microampere is equal to:
- 0.3 uA
- 0.3 mA
- 0.03 A
- 0.03 mA
- Positively charged particle of an atom.
- proton
- photon
- electron
- meson
- It forces the electrons to move from one point to another.
- voltage
- current
- resistance
- conductance
- The basic unit of resistance is called
- ampere
- volts
- ohm
- watt
- The amount of electrons flowing along a conductor.
- voltage
- current
- resistance
- conductance
- Voltage is also called as:
- electromotive force
- conductance
- coulomb
- megger
- In what way shall we connect 3 cells to increase voltage output?
- parallel
- series
- combination
- 500 kilohms is equal to:
- 500,000 ohms
- 0.5 ohm
- 0.05 megohm
- 5 megohms
- Materials that allow electrons to pass through it easily.
- conductor
- insulator
- semiconductor
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